Solve for x

I need help

Which of the following is a proper fraction? a. 9⁄8 b. 5⁄6 c. 7⁄3 d. 4⁄2

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer