Answer:
2.4 hours or 2 hours and 24 minutes
Step-by-step explanation:
Jack mows 1/6 of the lawn per hour while Marilyn mows 1/4 of the lawn together. Adding up those rates yields in their combined mowing rate:

The time required for them to mow the entire lawn is:

It would take them both 2.4 hours to mow the lawn together.
 
        
             
        
        
        
She would have to get 78.75 dollars every week to get the camera.
 
        
                    
             
        
        
        
Answer:
132, 390, 244, 492
Step-by-step explanation:
those are the answers in order
 
        
             
        
        
        
Answer:
Step-by-step explanation:
See the attached image