Answer:
1. is true
2. false
3. true
Step-by-step explanation:
 
        
             
        
        
        
Answer: 8 1/3 x 72 = 6
Step-by-step explanation: 
8 1/3 x 72 = 6
 
        
             
        
        
        
P + r = 2.50
r = p + 1
p + p + 1 = 2.50
2p + 1 = 2.50
2p = 2.50 - 1
2p = 1.50
p = 1.50/2
p = 0.75 <=== pencil cost 75 cents
r = p + 1
r = 0.75 + 1
r = 1.75 .....ruler cost 1.75
        
                    
             
        
        
        
She would have to work 11 hours to get enough money to buy the sneakers
But if you want the hours included for the time she needs to work to pay off the loan she would have to work 8 hours, so all together 19 hours.
Hope this helps!!
 
        
             
        
        
        
The solution is x=-4, y=-2