Using the graph above, identify the constant of proportionality between the number of shirts and how much they cost? Hint: simplify your answer
A. K=80
B. K=20
C. K=10
D. K=8
![Using the graph above identify the constant of proportionality between the number of shirts and how much they cost Hint simplify your answer A K80 B K20 C K10 D class=](https://us-static.z-dn.net/files/d9a/c189a70776199a4c1817c98317fc3ae2.png)