Pinter Corporation produces three products and is currently short on machine hours since one of its two machines is down; only $880$ machine hours are available this month. The selling prices, costs, labor requirements, and demand for the three products are as follows:

$\backslash$table$[[,$Product A$,$Product B$,$Product C$],[$Sales price,$$9\mathrm{.}00,$$$7\mathrm{.}00,$$$9\mathrm{.}00$