Which descriptions of evolution are accurate? check all that apply. it occurs within an individual's lifetime. it occurs over many generations. it applies only to an individual. it applies to an entire population. it happens at the genetic level.

-It occurs over many generations.

-It happens at the genetic level.

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