Stacy had a higher ratio, because when you divide the time they spent watching t.v over the time they spent reading Carey had 0.75 and Stacy at 0.80 which leaves stacy with the higher ratio.
Answer:
D. 81
Step-by-step explanation:
You need to first add 77, 95 and 82 to get 254, Then you do 335 - 254 which is 81.
Substitute
and
. Then the integral transforms to

Apply the power rule.

Now put the result back in terms of
.
