The app will only let me give one photo at a time, so here's part 1.
 
        
        
        
Y=x+1 would be the best equation that represents the line
        
             
        
        
        
Multiply straight across
5/1 * 3/4 = 15/4
now change it into a mixed number
3 3/4
        
             
        
        
        
Answer:
There is a formula for this:
[Worker 1 Time * Worker 2 Time] / [Worker 1 Time + Worker 2 Time]
[2 * 1.5] / [2 + 1.5] = 3.0 / 3.5
= 0.8571428571 Hours =
51.43 minutes
Both Jenna and Juan are INCORRECT.
Step-by-step explanation: