Answer:
The price per volleyball is $3.
Step-by-step explanation:
Divide $18 by 6 for the cost of each volleyball in which your final answer should be $3 per volleyball.
opt 4
when x=0, 0+3y= -3, so y=-1 (0,-1) is solution
when x=3 , 21+3y=-3, 3y= -3-21= -24
y= -8 (3,-8) is also solution
12x - 60
see picture for steps
x= 10
