Question

What is the constant of proportionality?

Answer 1

$0.7 Would be your answer

Hope you get it right!

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Answer 2

$0.7

Explanation:

number of songs is x

total cost is y

k is the constant of proportionality

k=y/x

k always stays the same for it to be proportional throughout the whole chart.

example=

8.4/12=11.2/16=13.3/19