Graph
a) number of boxes. profit
15. $20.25
17. $22.95
19. $25.65
21. $28.35
b) 8. $10.80
10. $12.15
12 $13.50
14. $14.85
c) 15 $ 13.25
17. $18.95
19 $21.65
21. $24.35
d) 8. $14.85
10. $16.20
12. $17.55
14. $18.90
for every 6 boxes sold stephanie makes a profit of $8.10 which table shows the same rate of change?