What do you mean? Oh oh oh I used to do this, what grade you it?
I’m pretty sure the answer is 12
The surface area of a right cylinder is the sum of the areas of the lateral face and the circular bases. The lateral face is really just a rectangle with the same height as the cylinder and a length equal to the circumference of the circular base.
If the radius of the base is

and the height is

, then the surface area of the cylinder is

You're given that the area is

and the radius is

, so you have
Answer:
300+4x < (9+5)*x
Step-by-step explanation:
x is number of times Robert goes to the gym