It depends what the starting value of n is defined as
Assuming n starts at 0 it would be:
-5, -5, -3, 1
Assuming n starts at 1 it would be:
-5, -3, 1, 7
90 degrees
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D, 8 to 12
A, B, and C are all equivalent.
Answer:

Step-by-step explanation:
To evaluate f(4) substitute x = 4 into f(x)
f(4) = 5 ×
= 5 ×
= 
1 day = d
0 + 3d = 4 + 2d
3d = 4 + 2d
d = 4
It'll take 4 days
Hope this helps ^-^