Answer:f(0)=9
Step-by-step explanation:
g(0)=(-0)^2+9
g(0)=0+9
g(0)=9
Answer:
a. 7 ft
Step-by-step explanation:

Answer:
Sam is incorrect because you would not add the two times together. Hence there being 2 people working it would take you guys less time. You would actually subtract the times to get 5 minutes
Step-by-step explanation:
2n + 2n = 2n squared and 17 + 21 = would be 38
so answer is : 38 + 2n squared