15-1/6n=1/6n-1 First, lets multiply both sides by 6 so that n is a whole number: 90-n=n-6 now you group like terms on each side, to do this you add n to each side and add 6 as well so it becomes: 96=2n Now divide both sides by 2 so you have 'n' on one side and it is: 48=n
Five squared with the little two and 2 because 5 Times 10 is 50 and five is prime so then from 10 and you get five and two and both five and two are prime
The equations woould look like this a=2000(1+.0225/12) to the 12th power b=2000(1+.03/12) to the 12th power but i cant find the answer cuz i have no calculator sorry but i hope i still helped.