9. new york city spends about $2.3 billion out of 75 billion of the city's annual budget on residential and
commercial waste management. what percent of the city's budget is spent on waste management

the answer is 45 i just did it on oddesy ware

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

do it yourself this is easy

step-by-step explanation: