How many times must he see 9 in order to cover all 72 of them ? 72/9 = 8 . He has to see 9 patients 8 times, so he has to work 3 hours 8 times. 3x8=24 hours.
Answer:
27
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given

Required
Find 
To find
, we simply substitute 10 for d and -4 for c in the given expression.
The step is as follows:

Substitute 




The expression cannot be solved any further; so, we can conclude that when d = 10 and c = -4, 
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Answer:
-12r2-9r-6
Step-by-step explanation:
-distribute the subtraction symbol to the second group of numbers
-(9r2+7r+2) = (-9r2-7r-2)
-then combine each term together (-3r2-2r-4)+(-9r2-7r-2)
= -12r2-9r-6
HOPE THIS HELPS!!