Answer:
D-70.81
Step-by-step explanation:
I did the math, this should be correct.
Good luck!
Answer:
The most logical answer is D
Step-by-step explanation:
The general formula for exponential growth and decays is:

if k>0 then then it is an exponential growth function. If k<0 then the function represents an exponential decay.
Now we need to classify each of the functions:
1.
The function

can be wrtten as:

comparing with the general formula we notice that k=2, therefore this is an exponential growth.
2.
The function

can be written as:

comparing with the general formula we notice that k=-4, therefore this is an exponential decay.
3.
The function

comparing with the general formula we notice that k=-1, therefore this is an exponential decay.
X+79=98 (subtract 79 to isolate x)
X=19 so it is false
One and a half = 1.5
Three and a half = 3.5
1.5 + 3.5 = 5.