Answer:
f(x) = x² - 6x
g(x) = (x³)² = x^6
( f o g) x
Wherever you see x in f(x) replace it by g(x)
That's
( f o g)(x) = (x^6)² - 6(x^6)
= x^12 - 6x^6
Hope this helps
There were 5 of the 15 in the simulation that used a coupon. To find the probability you just divide 5 by 15
P(=>4) = 5/15 = 1/3 - probability of 4 or more
