You did everything correctly! I did it myself...all of your subtraction is correct, then I added the answers together and I got 51. Where you trying to get another answer?
<span>Will ran 1.33333333333 miles on his second day of training.</span>
F(x) = -3e^(x + 1)
f(2) = -3e^(2 + 1) = -3e^3
Part A:
Answer Is (B)
Part B:
Answers are: (C and E)
Hope this helps.