You have just invested $$10,000$ into a $5-$year, high$-$yield Certificate of Deposit $($CD$).$ Interest compounds in the CD on a quarterly basis. The stated interest rate of the CD is $7\mathrm{.}25\%$ APR with assumed monthly compounding. A CD is simply a type of investment that pays interest at a fixed rate for a fixed period of time and is generally not redeemed until its maturity.