Answer:
B) -7
Step-by-step explanation:
x+y
8+(-15)=8-15=-7
 
        
             
        
        
        
Answer:
p=0 or p=-7/15
Step-by-step explanation:
15p2+7p=0
p(15p+7)=0
p=0 or 15p+7=0
 
        
             
        
        
        
R = laps she runs
s = laps she swims
each r (laps she runs) takes 5 min. 
each s (laps she swims) takes 3 min. 
She wants to run for 30 min.
So your inequality should = 30