Pls help me I’ll give u 50 points and brainlest if it’s right

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?

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.