Answer:
A
Step-by-step explanation:
W(P(t)) represents a patients's waiting time W() as function of the time of day P(t)
Step-by-step explanation:

The book weighs 96 ounces.
One pound is 16 ounces, and 16 x 6 is 96.
Answer:
-5 (4x+y)
Step-by-step explanation:
Factor out -5, and -20/-5=4, -5/-5=1.