We can see that g(1) = f(4).
So g(x) = f(4*x)
k is 4
If I did my math right, the right answer should be that the surface area of this triangular prism is 576 square meters.
Solution :
1). The cost of the formula is given as :
$ 19,350 + $12 x
2). 95%
for the prediction is :


(rounding off)
3). r = 0.92
Therefore, 
That is 84.64 % of the variability in the moving cost is best explained by the number of moves.
122 with 58
35 with 145
62 with 118
105 with 75