The art teacher is going to have students paint a mural on the wall of the school.
The building is 632.5 feet long, and there
are 73 students. Part of the wall can't be
painted because it has doors in it; this
part of the wall is 12 feet long. How wide
is the area that each student will have to
paint?

8.5 feet

Step-by-step explanation:

632.5-12= 620.5

620.5/73=8.5

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step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb