Write an algebraic expression to model the unknown number problem the quotient of a number and nine Which stetements are true? Select all that apply You can replace "a number with a variable to represent an unknown value O Quotient means the result of subtracting two numbers. Division Words divided by Division involving a variable is represented as a fraction quotient 9 The correct expression is sharing The correct expression is grouping Done

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.