can someone explain what am suppose to do?

Question

1.An Exercise class is 90 minutes long. How many seconds are in these 90 minutes ?

2.A display of book at a library has 6 fiction books for every 2 nonfriction books how many books are displayed if 8 nonfriction are displayed?

Answer 1

There's 60 minutes in an hr. There's 1.5 hrs. How many seconds?

First; how many seconds are in an hr? Multiply by 1.5.