Week 15 they'll both weigh 181 lbs
Answer:
Coupon B
Step-by-step explanation:
Given



Required
Which coupon is better
From the question, we have:


Coupon B means that:



By comparison:
Coupon B gives him a better buy because: 
H(f(x))=3(x^2+2)
h(f(x))=3x^2+6
g(h(f(x)))=(3x^2+6)^3+2
g(h(f(-1)))=(3(-1)^2+6)^2+2
g(h(f(-1)))=(3+6)^2+2
g(h(f(-1)))=81+2
g(h(f(-1)))=83