To solve this problem, we first have to find our unknowns. Our unknowns are the number of miles he runs during the week and the total miles that he runs. We can set up equations for these unknowns by letting  represent the miles that he runs during the weekdays and  represent the total miles that he runs in  week. 

  because he is running  miles  times.

 because to find the total we need to add the miles he runs during the week and on the weekend.

To solve this problem, we first have to find our unknowns. Our unknowns are the number of miles he runs during the week and the total miles that he runs. We can set up equations for these unknowns by letting  represent the miles that he runs during the weekdays and  represent the total miles that he runs in  week. 

  because he is running  miles  times.

 because to find the total we need to add the miles he runs during the week and on the weekend.

To solve this problem, we first have to find our unknowns. Our unknowns are the number strawberries and raspberries she puts in the fruit salad. We can set up equations for these unknowns by letting  represent strawberries and  represent raspberries. 

  because she has  times as many strawberries than watermelon. 

  because when we half something we always divide by 

Now we need to add the watermelon, strawberries, and raspberries together to find our total. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number strawberries and raspberries she puts in the fruit salad. We can set up equations for these unknowns by letting  represent strawberries and  represent raspberries. 

  because she has  times as many strawberries than watermelon. 

  because when we half something we always divide by 

Now we need to add the watermelon, strawberries, and raspberries together to find our total. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number of flyers that she hung on the west side of the building and the number of flyers she has left over. We can set up equations for these unknowns by letting  represent the flyers she hung on the west side and  represent the flyers that she has left. 

  because she hung half as many flyers on the west side as she hung on the east side. When we half something we always divide by .

To find the total number of flyers that she hung we add the amount of flyers on the east side and the amount on the west side. 

To find how many flyers she has left, we subtract that total flyers that were hung from the  flyers that she started with. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number of flyers that she hung on the west side of the building and the number of flyers she has left over. We can set up equations for these unknowns by letting  represent the flyers she hung on the west side and  represent the flyers that she has left. 

  because she hung half as many flyers on the west side as she hung on the east side. When we half something we always divide by .

To find the total number of flyers that she hung we add the amount of flyers on the east side and the amount on the west side. 

To find how many flyers she has left, we subtract that total flyers that were hung from the  flyers that she started with. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number of ropes and stuffed animals that Spot has. We can set up equations for these unknowns by letting  represent ropes and  represent stuffed animals. 

 because he has  more stuffed animals than his  balls. 

 because double means  times more. 

Now we need to add up our number of balls, stuffed animals and ropes to find our total. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number of laps he swims on Wednesday and Thursday and the number of laps he swims on Friday. We can set up equations for these unknowns by letting  represent the laps that he swims on Wednesday and Thursday and  represent the number of laps he swims on Friday. 

 because when we triple something we multiply by .

 because he is swimming  less laps than he did on Monday, which means we subtract. 

To find the total amount of laps that he swam, we need to add up the laps that he did each day. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number of ropes and stuffed animals that Spot has. We can set up equations for these unknowns by letting  represent ropes and  represent stuffed animals. 

 because he has  more stuffed animals than his  balls. 

 because he has five times as many ropes as his  balls. 

Now we need to add up our number of balls, stuffed animals and ropes to find our total. 

To solve this problem, we first have to find our unknowns. Our unknowns are the number of laps he swims on Wednesday and Thursday and the number of laps he swims on Friday. We can set up equations for these unknowns by letting  represent the laps that he swims on Wednesday and Thursday and  represent the number of laps he swims on Friday. 

 because when we double something we multiply by .

 because he is swimming  less laps than he did on Monday, which means we subtract. 

To find the total amount of laps that he swam, we need to add up the laps that he did each day.