4.5 quarts per minute is 1.125 gallons per minute using the quarts-to-gallons conversion ratio. 1.125 gallons per minute is equal to .01875 when divided by 60, so we have .01875 gallons per hour.
A line being rotated in such a way I would think would be A
The measure of angle 1 is 75°. Hope you get it.
Your best bet would be D.
4^1|15 I know this cuz I had the same questions and got them right