El equivalente a (x +8)(x-8) es:

x^2 - 64

Step-by-step explanation:

(x + 8)(x - 8) = x^2 - 8x + 8x - 64 = x^2 - 64

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.