Use the model below to calculate 9 ÷ 1 3 .
9/3
3/9
13 1/2
27

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

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

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.