Select the correct answer from each drop-down menu. garry is cooking for his friends. he wants to buy some potatoes, which are priced at m dollars a pound. he has already spent b dollars on other ingredients. the following expression represents the total amount of money that garry would spend after buying x pounds of potatoes. if the amount already spent by garry on other ingredients, b dollars, is halved, then the value of m will . if the cost for each pound of potatoes, m dollars, is tripled, then the value of b will , and the value of mx will .

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.