Jenna gets the job mowing Mrs. Toliver's lawn. On her first day, she is worried because after 3 hours, she has not completed even half of the job! She measures the rectangular lawn and finds out it has side lengths that are all three times the length of Mr. Dunlap's. What are the side lengths of Mrs. Toliver's lawn? What is the area of her lawn?

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.