Two cylindrical paint rollers are shown below. Roller X has a height of 8 inches and a radius of 1 inch. Roller Y has a height of 4 inches and a radius of inch. Marjorie wants to compare the surface area of just the painting surfaces of the rollers, i. e., the part of the roller that will touch the wall while
painting
1 in
2-1
Roller Y
<
Roller X
Note: At not to scale
How many times the painting surface area of Roller Y is the painting surface area of Roller X?
O 2
22
12
4

Zed is making a centerpiece for his dining room table by putting sand in a cube-shaped vase. the vase is 0.25 meters in length, width, and height. he bought 25 kg of sand. assume the density of dry sand is 1,602 kgm3. what is the volume of the sand that zed purchased? the volume of the sand is approximately m3. enter your answer as the number that correctly fills in the blank in the previous sentence. if necessary, round your answer to six decimal places, like so: 42.536475