Answer:
q = A /m − k/ 3
Step-by-step explanation:
A The mean for waiter B is higher than the mean for waiter A.
C. m ≥ 9
7m -2 ≥ 61
7m ≥ 61+2
7m ≥ 63
m ≥ 63/7
m ≥ 9