$9.$ Sadbury Corporation produces and sells a single product whose selling price is $$210\mathrm{.}00$ perunit and whose variable expense is $$73\mathrm{.}50$ per unit. The company's monthly fixed expense is$$873,600.$

a$.$ Assume the company's monthly target profit is $$27,300.$ Determine the unit sales to attain thattarget profit.

b$.$ Assume the company's monthly target profit is $$68,250.$ Determine the dollar sales to attainthat target profit.