Set this up as ratio with feet on top and minutes on the bottom:

. Cross multiply to get 213x = 112 and solve for x to get x = .52 feet. This means that after she has been descending for 8 minutes she is a half a foot from the top.
(1.04)^4 = 1.1699
so the correct choice is the third one.
Answer:
It would be the first option.
Step-by-step explanation:
minus 9 from both sides to get a -3
so z≤-3
A good trick I learned was which ever way the arrow is pointing (in this case left) is the way the line will go.
Clearly engineers, business owners to map out their floor plans