Angela’s pizza is open from noon to midnight each day. Employees work
8- hour shifts from noon to 8 p.m. or 4 p.m. to midnight. The store
manager estimates that she needs at least 5 employees from noon to 4
p.m., at least 14 employees from 4 p.m. to 8 p.m., and 6 employees from
8 p.m. to...