A. f(x) = 7 + 0.3x
Just re-read your question! Hope I helped!
Answer:
Option A. 
Step-by-step explanation:
we know that
The volume of the cylinder is equal

where
r is the radius of the base of cylinder
h is the height of the cylinder
we have


substitute


The answer to the question is d
Answer:
For edginuity the answer is the last one.
Step-by-step explanation :
You multiply 3 x 3 and it’s 9. Have a great day and stay positive during this pandemic!!