19. C. 10,12 (D is eliminated because 15 is greater than 12, greatest common factor of the others was not 2)
20. C. 42 (The largest integer that can divide into both)
        
             
        
        
        
Answer:
26hr
Step-by-step explanation:
12 calls/hr
480 calls/wk
If Juanita has made 168 calls this week, it meants she still has to make 312 calls. So, 312 calls ÷ 12calls/hr = 26hr
Juanita needs to work 26hr mores to reach the weekly goal.
 
        
             
        
        
        
Subtract 180 - 34 = 146
You know ∠BPD adds up to 146°
Since  bisects ∠BPD, you know that ∠BPC and ∠CPD are equal to each other.
 bisects ∠BPD, you know that ∠BPC and ∠CPD are equal to each other.
Divide 146 by 2 = 73
m∠CPD = 73°