two movie tickets cost 19.00. three movie tickets cost 28.50 what is the costant of proportionality?

Question

1) 0.5

2) 9.0

3) 9.5

4) 11.0

Answer 1

thanks

Answer 2

You're welcome.

Answer 3

wat

Answer 4

What is the answer? This is very confusing... Maybe I will put it here when I finish the practice for future viewers.