Answer:
c. 9ft
Step-by-step explanation:

+ 144 = 225
= 81
x = 9
Exponential decay is given by the equation
F = P(1 - r)^t
0.5 = 1(1 - 0.092)^t
0.5 = (0.908)^t
log 0.5 = log (0.908)^t
log 0.5 = t * log 0.908
t = (log 0.5)/(log 0.908)
t = 7.18
Answer: 7.2 years
The point slope form of the line is:
D. y+4=2/5(x+7)
Answer: 
Step-by-step explanation:
q(x) is increasing for
.
p(x) is increasing for
.
So, both functions are increasing for
.