Given that a car has  wheels, and a motorcycle has  wheels, if there are  cars and  motorcycles in a parking lot, the total number of wheels can be found by using the expression below:

Jenny's usual schedule is to wake up at 7:00 am. She then takes  minutes to shower and brush her teeth,  minutes to dry her hair,  minutes to eat breakfast,  minutes to walk to school, and another  minutes to talk to her friends before class starts. This routine takes up the entire time from when she wakes up to when class begins:

If she wakes up half an hour late at 7:30 am, and skips her  minute breakfast as well has her  minute talk with her friends before class, she will need to take this much time to get to school:

Since she woke up at 7:30, it will be 8:05 when she gets to school, and so she will be  minutes late. 

Since Jon bought the first bicycle for  and resold it for , he made  in profit because .

Jon bought the second bicycle for  and resold it for , so he made  in profit because .

Jon bought the third bicycle for  and then sold it for , but because he spent  on repairs, he lost . This is because 

Thus, the total profit that he made is  because .

The first step to solve for  is to first solve for x and y. 

Here, 4 should be added to each side of the equation. This results in:

Here, 2 should be subtracted from each side of the equation. This results in:

Therefore,   is equal to .

If Angela lives 5 miles east of Bill, and Joe lives 3 miles east of Bill, that means that the distance between Angela and Joe will be  miles. 

A roundtrip will be two times 8 miles, which is equal to , which is therefore the correct answer. 

Write the numbers vertically as one on top of the other and add in the respective columns to get 5.56.

Seven hundred thousand is equal to 700,000.

Nine hundred is equal to 900.

Forty-seven is equal to 47 .

Thus, 700,947 is the correct answer. 

When adding two fractions, you first need to make their denominators match. Find the least common multiple of the two denominators, then convert both fractions so that they both share that denominator. The least common multiple of  and  is , so that will be the new denominator. Convert  into  by multiplying its numerator and denominator by , and convert  into  by multiplying its numerator and denominator by . Then add together the converted fractions. , so  is the correct answer.

If you’re having trouble, follow the following steps.  

First, take the first two numbers and add them together.  

Then, take the sum from the operation above and add it to the third number. You can repeat this process (i.e. only adding two numbers at a time, and then adding the next number to the sum) as many times as is necessary.

If you’re having trouble, follow the following steps.  

First, take the first two numbers and add them together.  

Then, take the sum from the operation above and add it to the third number. You can repeat this process (i.e. only adding two numbers at a time, and then adding the next number to the sum) as many times as is necessary.