1. If a car traveled 452 miles on 13 gallons of gas, how many miles per gallon did the car average on the

trip?

a. 452x = 13

b. 452 = x – 13

c. 13x = 452

d. 13 + x = 452

2. The product of two numbers is 1692. If the smaller number is 730 less than the larger number, find

the larger number.

a. x(x – 730) = 1692

b. x(730 – x) = 1692

c. 730x = x – 1692

d. x + x – 730 = 1692

3. An appliance repairman charges $60 for a house call, and $30 per hour for labor. How many hours is

the repairman estimating to work at your home if the quote for the total price is $127.50 and there is

no charge for parts?

a. 30x – 60 = 127.50

b. 30x + 60 = 127.50

c. 30 + 60x = 127.50

d. 30x – 127.60 = 60

4. Victor bought 5 posters on sale. The original cost of all 5 posters was $73.25, but she only paid $51.89

for all 5 posters. How much did she save on each poster?

a. 51.89 / (5x) = 73.25

b. 73.25 – 51.89 = 5x

c. 73.25 / 5 = 51.89x

d. 73.25 – 51.89 = x

5. 35. Because of a flu epidemic, of all students were absent from school. If 156 students were absent,how many students are enrolled in the school?

a. 1/12x x = 156

b. 11/12x x = 156

c. 1/12x x = 156

d. 11/12x x =156

Alright, these problems are on a practice exam and no matter how much I read about them in the lesson, I just cant seam to get my head around any of these. Could someone dumb it down for me?