Answer:
A. About 4,900 ft
Step-by-step explanation:
We want h such that ...
5 = 10·ln(h) -80
8.5 = ln(h) . . . . . . . add 80, divide by 10
e^8.5 = h ≈ 4914.8 . . . . take the antilog
h ≈ 4900 . . . . feet
Answer:
Simplifying
x = 4.5 + -0.5y
Step-by-step explanation:

This is an exact answer. the answer will be a bit larger than 20
Answer:
X<2
I think is that never the less could be wrong