Acompany charges $5 for each poster ordered, plus a fixed shipping charge of $4, no matter how many posters are ordered. which table best represents the total costs of ordering different numbers of posters?

a)
poster orders
number of posters total cost
1 9
2 9
3 9
4 9

b)
poster orders
number of posters total cost
1 9
2 14
3 19
4 24

c)
poster orders
number of posters total cost
1 9
2 13
3 17
4 21

d)
poster orders
numbers of posters total cost
1 5
2 10
3 15
4 20