The teacher kept track of how long it took students to finish a test. After 80 minutes, a total of 10 students had finished the test. After 90 minutes, a total of 11 students had finished the test.

How many students finished taking the test between 30 and 40 minutes?

1

0

4

2

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.