PLEASE HELP ME ILL MAKE BRAINLIEST HURRY

The table below shows a proportional relationship between the cost of movie tickets and number of tickets purchased.



What is the constant of proportionality?

A
5.5

B
9.5

C
8.5

D
17

PLEASE HELP ME ILL MAKE BRAINLIEST HURRY The table below shows a proportional relationship between the cost of movie tickets and number of tickets purchased Wha class=