Question 1124933
9000 * 1.06 = 9540.


that's what's in the account at the end of the first year.


the 1.06 factor is derived as follows:


6% = .06


6% of 9000 = .06 * 9000.


9000 + .06 * 9000 is your expression.


factor out the 9000 to get 9000 * (1 + .06) which becomes 9000 * 1.06.


the result is 9540.


the principal is 9000.


the interest is 540 which is equal to .06 * 9000.