Can someone please help me find the area for this thank you so much I really appreciate it

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?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

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.