Aya, Jessica, Oliver, Hal, Lou, Pam, and Roger are competing with each other to see who can wash the
most cars Jessica cleaned one more than twice as many cars as Aya. Oliver did 5
more cars than Jessica. Hal washed half as many cars as Lou, and Pam
washed one-third more cars than Aya did. Roger, who came late, washed
one-ninth as many cars as Oliver did, All together the 7th graders washed 157
cars. How many did each person wash?

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

27

step-by-step explanation:

hello from mrbilldoesmath!

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

discussion:

in general, the factorization of a^3 + b^3 is

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

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

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

you,

mrb

(a + b) (a^2 - a b + b^2)