$3.$ On March $1,$ the Zwick Balloon Company signed a $$6500$ note with simple interest of $10\%$ for $6$ months. The company made payments of $$1750$ on May $1$ and $$2350$ on July $1.$ How much will the company owe on the date of maturity?

check my work please

$6,500(0\mathrm{.}10)(0\mathrm{.}5)=325\mathrm{.}00$

$6500+325\mathrm{.}00=6825\mathrm{.}00$

$1750+2350=4100$

$6825\mathrm{.}00-4100=2725\mathrm{.}00$ owed