I need help with is math

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Which of the following quartic functions has x = –1 and x = –2 as its only two real zeroes?