a tank is formed by rotating the curves y=x^2 about the y-axis for 0<=x<=4. If the tank filled with water a depth of 12 feet, how much work is performed in pumping all the water to height of 3 ft above the top of the tank ?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Tatiana wants to give friendship bracelets to her 32 classmates. she already has 5 bracelets, and she can buy more bracelets in packages of 4. write an inequality to determine the number of packages, p, tatiana could buy to have enough bracelets.