The Kellys are having dinner at a local restaurant. Mr. Kelly wants to give the server a 15% gratuity, and the sales tax is 6.5%. He will use the amount of the bill to find each additional amount. Question 1 Part A Which components would Mr. Kelly use to write an equation to determine the total cost of the meal, given the amount of the bill, x? Select all the components of the equation. x x+0.15 0.15x x+0.65 0.65x 0.065x

y=mx+b is the final answer!   : )

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

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)