The dilation is a reduction because n > 1
Hope this helps :)
The range of y = ex is all numbers greater than 0, so since the function has been shifted up 1, the new range of the function is all numbers greater than 1. Since the argument of any log must be greater than 0, (x-1)/2 > 0. Thus x - 1 > 0, so x > 1
Angle A is 45
Angle R is 72 because S and R are the corresponding angles in the triangle.
To find angle RVA add 72 and 45 and the subtract by 180.
RVA = 180-(72+45) = 63
Hope this helps :)