For this case we have to define "y" directly with "x" when there is a constant of proportionality "k", such that:

This is known as direct variation.
On the other hand, if y varies inversely with x we have to:

This is known as inverse variation.
Answer:
, direct variation
14 is the answer, here's how: do 48+36 and get 84 and divide that by 6 and get 14.
<span>The Least Common Multiple (LCM) is: 3 x 5 x 5 x 7 = 525</span>
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<span>Hope this helps!</span>