A restaurant, hot choclate can be purchased in two different cup sizes. A 12-ounce cup cost $3.60 and a 16-ounce cup cost $4.80.
Is the linear relationship between cup size and cost also proportionality? Why or why not?
A Yes, the constant of proportionally is 0.3
B Yes, there is no constant of proportionally
C No, the constant of proportionally is 0.3
D No, there is no constant proportionally