A shop owner did a survey to determine the ages of shoppers who made purchases in the shop. The results for one afternoon are shown. How many shoppers were between the ages of 20 and 30, including 20 and 30? What were their ages? 13, 19, 20, 30, 30, 31, 38, 48, 50, 52, 55, 56, 65, 67, 69, 69, 70, 75

3

Step-by-step explanation:

sense were looking for the ages between 20 and 30 including 20,30 the number are 20,30,30,

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb