Acar travels 172 miles using 7 gallons of gas. at that rate, how far can the car traval using 42 gallons of gas?
a. 1,032
b. 1,548
c. 1,204
d. 1,376

yesterday, a parking lot had 60 cars parked in it. of the cars parked in the parking lot, 40% were silver, 14 were red, and the rest were blue. how many of the cars were blue?
a. 24
b. 38
c. 22
d. 6

everyone in andy's class has to do a science project. out of the 20 students, 80% have completed their project. how many students still need to finish there projects?
a. 100
b. 36
c. 16
d. 4

emily has 85 books on her bookshelf. of those books, 20% are mysteries, 18 are adventure stories, and the rest are fantasies. what is the simplified ratio of fantasies to total books on her bookshelf
a. 35: 50
b. 7: 17
c. 5: 8
d. 10: 17