The cell membrane to control what enters and leaves a cell. which of these substance, which account for about two thirds of a cell's mass, is constantly moving in and out of the cell?
a. carbohydrates
b. protein
c. waste
d. water

there are 35 white marbles

step-by-step explanation:

y- yellow marbles

4y + 5 = 45

subtract 5 from both sides

4y = 40

divide for from both sides

y = 10

plug in 10 to get 40 yellow marbles then subtract by 5 to get 35 marbles

thus there are only 10 yellow marbles

if you know your abc's you should be able to get your answer or just use google