Cylinder a has radius r and height h. cylinder b has radius 2r and height 2h. how many times greater is the surface area of cylinder b than the surface area of cylinder a?
i have no idea how to start doing this problem. are there any tips on how to start?

Order the numbers in each list from least to greatest. −4, 1, −6, 2 a. −4, −6, 1, 2 b. −6, −4, 1, 2 c. −6, 2, 1, −4 d. 1, 2, −6, −4me!

The area of a 25-inch tv screen is 300 square inches. the area of a 40-inch tv screen is 768 square inches. the are of the smaller screen is what percent of the area of the larger screen?

The appalachian trail is a hiking trail that passes through the appalachian mountains. three members of a teen hiking group hiked a section of the trail. the hikers stopped at a rest area and equally shared 3 4 gallon of water. how much water did each person get?