Sally lives in City A and works for the department of transportation. She needs to inspect the weigh stations in each of twelve cities other than City A. In how many ways can she reach each of these cities and return to her home in City A?

answer: 1 2 3 6

step-by-step explanation:

1x6=6 2x3=6

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

try quizlet : ) hope this

16 would be your answer