$5000 at 6% for 9 months what is the balance

I think it's suppose to go

6% is .06 divided by 12 which is .005 times the number of months so in this case 9 so 5,000 times .005 times 9 which is 225 so 5,000 plus an interest of 225 adds up to 5,225

(5000)(6)
100
@9
(5000)(6)
100
=300

Which is just 5000 multiplied by 6 divided by 100