(i actually added 20 points to this but it's showed as less. if i have with this one i'll ask another question but it'll be a simple one with higher points added. you c: )
question 1.
darlene will borrow $2200 at 15% apr. she will pay it back in 12 months. how much interest will she pay? use the table.

a. $154.00
b. $286.00
c. $330.00
d. $412.50

question 2.
maribel will borrow $6250 at 13.5% apr she chooses to pay it back in 2 years.
what will her monthly payment be? use the table.

a. $212.13
b. $292.75
c. $295.69
d. $298.63

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.

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)