Will be giving brainiest to first correct answer! Match the graph with the expression.

A-x is greater than or equal to -20

B-x is less than or equal to 15

C-x<2

D-x>1

E-2 is less than or equal to x

Step-by-step explanation:

a closed dot(filled in) means less thant or equal to, or more than or equal to. and open dot means less than, or more than.

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