The table shows the ratio of caramel corn to cheddar corn in a bag. what is the constant of proportionality?

cheddar corn caramel corn
10 15
20 30
30 45

answers:
1.5
5
15
0.67

i got 5 is this right because the averages are 5,10, and 15 so it would be 5?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.