Joseph is going to invest in an account paying an interest rate of 5.6% compounded annually. How much would Joseph need to invest, to the nearest hundred dollars, for the value of the account to reach $8,300 in 10 years?

5/12, or 5: 12

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x