Asubmarine cuts through the water at an elevation of 203 meters under the sea. the sub rises, and the elevation changes by 4.3 meters per minute for the first 15 minutes. the sub continues to rise at 5.2 meters per minute for the next 12 minutes. what is the elevation of the submarine after rising? assume that sea level is at an elevation of 0 feet.

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.