The net of a rectangular prism is shown below. 40 square units 40 square units 43 square units 43 square units 70 square units 70 square units 78 square units

you probably already have the answer but anyways it's b. 15.0

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

i think it would be c

mark brainliest if im right

step-by-step explanation: