Answer:
C.x<8
Explanation:
The restaurant manager can spend at most 400 a day for operating costs and payroll.
Operating cost = $80
Per employee cost = $40
Let the number of employees be x.
Then, total employee cost per day = 40 * x
As per the given requirement,
Fixed operating cost + total daily employee cost < 400
Or, 80 + 40x < 400
Simplifying the inequality:
=> 40x < 400 - 80
=> 40x < 320
=> x < 320/40
=> x < 8