Acylinder tube with caps on both ends is used to safely carry a rolled up poster. the tube is 42 inches tall with a radius of 1.5 inches. if one mini can of spray paint covers 150 square inches, how many mini spray cans of red paint would be needed to cover the entire tube?

a. 3
b. 2
c. 1
d. 4

if anyone know this kind of math, i really need with it. im not very good in math and i have testing coming soon.

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.