Please answer the question

$1\mathrm{.}25$ To attract new customers, EP Employees Credit

Union advertised that they will begin paying $3\%$

interest every quarter on all savings accounts.

$($Their competitors pay interest every $6$ months.$)$

The credit union uses March $31$st$,$ June $30$th$,$

September $30$th$,$ and December $31$ st as quarterly

interest periods. Determine $(a)$ the end$-$of period

totals in the account, and $($b$)$ the interest paid

each quarter on the total. Assume there are no

withdrawals and that quarterly interest is not

redeposited.