Buffy loaded one third of a truck in one ninth of an hour. Find the rate
in trucks per hour.

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.