1. An emergency hot line operates 7 days per week and needs to determine how many workers (full-time equivalent, FTE) employees to staff. Employees work 12 hour shifts. A FTE is defined as an employee that works 7.5 hours per shift, 5 days a week. Ten employees are needed between 7:00 a.m. and 7:00 p.m., and ten employees are needed from 7:00 p.m. until 7:00 a.m. How many FTE are needed?