Find the annual interest rate.

I=$297, P=$550, t=6 years

Solving for rate r as a decimal

r = n[(A/P)1/nt - 1]

r = 12 × [(847.00/550.00)1/(12)(6) - 1]

r = 0.07218

Then convert r to R as a percentage

R = r * 100

R = 0.07218 * 100

R = 7.218%/year

Summary:

The interest rate required to get a total amount of $847.00 from compound interest on a principal of $550.00 compounded 12 times per year over 6 years is 7.218% per year.

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

divide, then simplify your answer.

1. make -15.66 ÷   5.8 a fraction. then divide.

2. simplify.  

3. final answer.