A. 35 because of you look at the line plot it explains how long student are in there for and how many times a day. So you just need to figure out how many students do hw for how long and then multiply that by 10.
The gradient is the slope right?
If yes, then your answer is -4.
m=(y2-y1)/(x2-x1)
m=(10-2)/(-2-0)
m=-4
Perpendicular: slope is -3/2
Based on this I would already know the answer is A.
Answer:
sra face 4th ttfududyf DC yfudjee egg 4th w start FM 4th FL
4*50 + 3*200 = 700
i hope this will help you
