Question

A forest owned by the Jumbo Lumber Corporation contains 7,820 trees. If Jumbo Lumber cuts down 77 trees every day, which function can be used to find the number of trees, n, left in the forest after t days?
A.
n(t) = 7,820 - 77t
B.
n(t) = 7,820t - 77(my answer)
C.
n(t) = (7,820-77)t
D.
n(t) = 7,820 + 77t

Answer 1

no
I hope you weren't guessing, hoping that somebody would just give you the answer.

suppose you let t = 2, that is two days
number of trees cut down would be 2(77)
and the number of trees left would be 7820 - 2(77)

now which of your choices follows that pattern for t days?