PLEASE CHECK MY ANSWERS! THANKS

please help me and thanks to you all !!

1. A car travels 132 miles using 4 gallons of gas.At that rate,how far can the car travel using 7 gallons of gas?

A.231 miles (I pick this)

B.264 miles

C.134 miles

D.1,260 miles

2.yesterday ,a parking lot had 10 cars parked in it.of the cars parked in the parking lot l,40% were silver,3 were red,and the rest were blue.how many of the cars were blue?

A.2 cars

B. 5 cars (I PICK THIS)

C. 3 cars

D. 8 cars

3.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 their projects?

A.100 students

B. 36 students (I PICK THIS)

C. 16 students

D. 4 students

5.emily has 85 books on her bookshelf.of those books,17 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 (I PICK THIS)