Answer:
I think A
Step-by-step explanation:
Yes, the cost of membership is proportional to the number of months because for every 1 month it's $35 for membership fees
For domain 2x sqrt(2+x)>0
x>0,2+x>0,x>-2 combining
we get x>2
f'(x)=[1/{2x sqrt(2+x)}][{2x/(2 sqrt(2+x))}+2 sqrt(2+x)]
Answer: 15w
Step-by-step explanation:
