Jennifer invests $7,000 in an account for 12 years that pays compound interest annually. She uses the expression P(1 + r) to find the total value of the account.
What will be the total value of the account after 12 years if the interest rate is 1.6%?

The rule is P(1+r%) power of time (T) so you're gonna apply the number to the rule

Step-by-step explanation:

P=7000

r=1.6%

T=12

7000 x (1+r%) power of T

(1+1.6%) power of 12 = 1.20983040

so when we calculate 7000 x (1+1.6%) power of 12

the answer will be = 8468.812846

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