Jenny surveyed 40 students at her school and found that 0.55 of the students she surveyed said their favorite class is math. another 25% of the students she surveyed reported that their favorite class is science. how many more students in the survey prefer math over science? 12 22 30 32

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.