Ex$.$ A drive through restaurant costs construct, has $5$ employees, and will earn $$200,000$ in revenue. A full service restaurant costs to make, has is employees, and makes $$1500,000$ in revenue, $$2\mathrm{.}4$ million is availabie in capiral for construction, no move than $210$ empluyees can be hired and no more than $20$ restaurants construted. How can restaurants be built o maximize sevenue?