1) julie's car can travel 512 miles on 16 gallons of gasoline. what is the number of miles per gallon?
30
32
32.5
30.2
2) the cost of 50 pounds of pet food is $117.50. what is the cost for one pound of pet food?
$23
$0.43
$2.35
$235

512 = 16
x = 1

16x = 512
x = 512 ÷ 16
x = 32

32 miles per gallon (B)

50 = 117.50
1 = x

50x = 117.50
x = 117.50 ÷ 50
x = 2.35

$2.35 per pound (C)

To find the miles per gallon, you've got to divide the larger number (512) by 16, and this gives you 32. Therefore, the car is 32 miles to e gallon. You've also got to do this for the second one, and in this case, you've got to divide $117.50 by 50, and this gives you 2.35, which means that a pound of dog food costs $2.35 Hope this helps :)

Could you make it more clear?