...................................15.01
8 + 5 (x - 3)^3...when x = 9
8 + 5 (9 - 3)^3 =
8 + 5 (6^3) =
8 + 5(216) =
8 + 1080 =
1088
So to find an average of things, you find the sum of the numbers, divided by the total numbers in the set.
So you add up 258 + 50 = 308.
Divide that by the total numbers (2). 308/2 = 154
