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