When the CPI is 185, an electric razor cost $57. 81. What is the difference between the price of an electric razor in 1983 and the cost of an electric razor when the CPI is 207, to the nearest cent? a. $33. 44 b. $31. 25 c. $26. 56 d. $6. 88.

the mean and mad

step-by-step explanation:

answer: apothems is your answer

step-by-step explanation: hope u get it right

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