Verizon offers to sell cellular phones listing for $100.59 with a chain discount of 15/10/5. Cellular Company offers to sell its cellular phones that list at $104.19 with a chain discount of 25/5. If Irene is to buy eight phones, how much could she save if she buys from the lower-priced company? (Do not round intermediate calculations. Round all dollar amounts to the nearest hundredth. Round your final answer to the nearest cent.)

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation:

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

its line 2 i just added the rest or else it wouldn't let me answer