Question

Beginning at sunrise, the temperature rose 2.8 degrees per hour.

Answer 1

19.18 / 2.8 = 6.85

So answer is D.6.850 h

Answer 2

Temperature rose for 2.8 degrees = 1 hour

for temperature rose for 1 degree = 1/2.8 hour

Now, for 19.18 degrees, it would be = 1/2.8 * 19.18 = 6.850 h

D)OPTION D is your answer........