.08 cents per ounce, because 2.40 ÷30 =.08
        
             
        
        
        
Answer: (3 , 7)
Step-by-step explanation: When rotating a point 180 degrees counterclockwise about the origin our point A(x,y) becomes A'(-x,-y). So all we do is make both x and y negative. Since x and y are already negative, they become positive due to the double negative rule. 
 
        
             
        
        
        
Answer:
7.7
Step-by-step explanation:
square root 59 and it's 7.681, round to tenth to get 7.7
 
        
             
        
        
        
Answer:
68
Step-by-step explanation:
70 add 32 
160 - 92