105% as a decimal would be 1.05 in decimal form
$3,816 is in the account after one year
3,600 x 6% is 3816
1000= 10^3 -- ten to the third power
assuming you mean whole numbers,
graba calculator, figure out what
1^3, 2^3 3^3 ... 9^3 are
or
1x1x1
2x2x2
3x3x3
...
9x9x9
