Answer:
7x-9
Step-by-step explanation:
<u>To find the constant of proportionality:</u>
⇒ must define constant of proportionality
⇒ <em>Constant of Proportionality: ratio of two proportional values at a </em>
constant value
⇒ (in this case) two proportional values are x and y
<u>The ratio between x and y is equal to</u>

<u>Answer:</u> <u>55</u> or <u>Choice 1</u>
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Hope that helps!
Answer:
i think so?
Step-by-step explanation:
The answer is A please Mark as brainless
1. 40
2. 24
3. 7.5
4. 30
5. 22.5