This rectangular prism is intersected by a plane that contains points N, P, U, and R. What is the perimeter of the cross section? Enter your answer in the box. Round only your final answer to the nearest tenth. ft A rectangular prism with height 6 feet, length 15 feet, and width 6 feet. The bottom vertices are labeled as R, S, T, and U, and the top vertices are labeled as M, N, P, and Q.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.