Step-by-step explanation:
The cylinder is a closed figure which consists of two circular ends. If r is the radius and h is the height of the cylinder, then its surface area is given by :

or

We also know that, surface area = perimeter×height
So, the surface area of the cylinder is the product of circumference of the circle and height of the cylinder.
The answer is A the line isn't sloping they are on the same y axis
There is 20 students. To find the answer you need to use porportionals and cross multiply.
Answer:
C
Step-by-step explanation:
You could wash 75 cars at this rate because 45/3 equals 15. You would multiply 5 by 15 and get 75.