Question

Someone check if the answer is correct.

Find the interest on $900 at 6% annual interest for four months.

4/12=0.22
900*0.06*0.33=$18.00

Answer 1

4 months is 4/12 or 1/3 of a year.
The annual interest on $900 at 6% is .06(900) or $54.
For 1/3 of the year, the interest would be 1/3 of $54 which is $18