Cost of 3 oranges = $1.00

Sales price = $1.00 – (0.20)($1.00) = $0.80

Cost of 6 apples = $2.00 x 2 = $4.00

Sales price = $4.00 – (0.15)($4.00) = $3.40

Total cost = $0.80 + $3.40 = $4.20

This problem requires an understanding of percentages and how to appropriately use them.  The sale takes 25% of off the original price, by multiplying $120 by 0.25 we get $30, so the sale price is $120 – $30 = $90.  We are then told that Karl receives an additional 25% off of the sale price so we multiply $90 by 0.25, we get $22.50, so the price that Karl would pay would be $90 – $22.50 = $67.50.

Since Howard's discount applies only to the original price, the price he would be pay can be determined by multiplying 150 by 0.5, which gives $75, this is the price reduction that Howard recieves, coincidentally it is also the price he will pay after taking $75 off of the original price of $150. Carlita first will recieve the 20% sale discount, her employee discount will then apply to the price of the item after 20% has been taken off of the original price.  The calculations that will provide the price that Carlita will pay are as follows. 150 * 0.2 = 30, 150 – 30 = 120, 120 * 0.3 = 36, 120 – 36 = 84. So Howard will pay $75, and Carlita will pay $84. Carlita will pay more by $9.

The dress is reduced by 60% of the original price, so first we must figure out what 60% of $39.99 is:

0.6*39.99 = 23.99

Since the sale is 60% OFF of the original price, we have to subtract this number from the original price: 

39.99- 23.99= $16. 

Now, we have to reduce this price by an additional 10%, so we have to find 10% of $16:

0.1*16 = 1.60

Finally, we must subtract this from our sale price of $16:

$16-1.6 = $14.40

To find the sale price, first find % of $:

$

Subtract this amount from  to find the sale price:

Finally, subtract the  coupon:

There are two ways to do a question like this. The first is to find out what the  markdown is. We do this by multiplying:

 to get 

Then, you subtract this from  to get .

The other way to solve this is to notice that the total cost of the shirt will be only  of the original price. Therefore, you can multiply  by  to get  as well.

A  book is marked down by  and then by another .  What is its final sale cost?

You can do a problem like this two ways. For the first way, you can first multiply:

 to get 

Subtracting this from , you get a price of .

Now, you do the same thing again for the  :

Subtracting this from , you get .

The easier way to do problems like this is to notice that after the  discount, the price will be  of the original. Then, after the  discount, it will be  of that altered price. You can just multiply sequentially to get your amount:

To find how much is remaining after  is taken off, subtract  from  (the total price of the original pair of shoes) and multiply it by the shoe's price.
 which rounds to 

To find how much money you save on a sale. Turn the sale percentage into a decimal and multiply it by the normal price: