Peter takes 7 minutes and 30 seconds to run 1 mile. how many miles can he run in 15 minutes? ?

Plz me plz i will give a brain just plz

1. the wheeling bridge in west virginia is about 307 meters long. if you walk with a stride of about meter, about how many steps would it take you to cross this suspension bridge?

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76