Divide y by x:
150/10 = 15
135/9 = 15
30 /2 = 15
They all equal 15
This means the constant of proportionality would be y = 15x
The answer is C.
It's factorable when c ∈ {5,8,9}

<h2>
Explanation:</h2>
Here we have the following expression:

And the question asks for solving the equation for the variable
. So we need to divide both sides of the equation by
:

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Learn more:</h2>
Solving equations: brainly.com/question/10643312
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452 because you will multiply 80 by 6 and get 480 and subtract 28 from that!