start with old navy and divide the overall price by the number of jeans. old navy = 8$ per jean. wet seal is 8$ per jean. and Marshalls is 9.75$ per jean. then you figure out the answer after looking back on the data i just commented
So, first you need to find out how much is for one pair of jeans. To find this out, you need to divide the cost by quantity.
Old Navy: 24÷3=8 So, $8 for one pair or jeans
Wet Seal: 16÷2= 8 So, $8 for one pair of jeans
Marshalls: 39÷4= 9.75
So, your answer is Old Navy or wet seal