Assuming that

is the amount of hours spent doing homework:
Plug in

for


,

That means that since a

value is the test score (because that's what the y-axis is labeled), your predicted test score is a
64.
CosB= 7/25
tanB= 24/7
sinB= 24/25
Ummm explain the question more but b seems to make the most sense
If you are looking for the average speed, it is 2m/1 sec.
There are 120 different possible groups.
(10 * 9 * 8)/(3 * 2 * 1) + 120