pls help i need it done by today

Question 1(Multiple Choice Worth 2 points)
(Dividing Rational Numbers MC)

The meteorologist made a forecast that a cold front was coming through and the temperature would steadily drop 15.8 degrees over the next six and one fourth hours. How much did the temperature drop each hour?

2.528 degrees
9.55 degrees
22.05 degrees
25.28 degrees