Liza makes 20 minutes of phone calls each day. which plan will give liza enough minutes for june, with between 30 and 50 minutes left. explain.

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)

i will with my problems and all the other things that need to   be on by the way

step-by-step explanation:

we would need a picture of the quadrilateral in order to answer the question. also, it seems that the question is missing some components.

12 dolars one is cheaper becasue 3 pairs is 6 means is sock is 2 while the 12 is cheaper