Answer:
There are 24 green marbles.
Step-by-step explanation:
Let x be the number of green marbles, then:
3/2 = 36/x
3x = 2*36
3x = 72
x = 24.
<span>The slope of the line passing through the points (6, 2) and (7, 3) is

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$13.33
Only information they give you is the prices unless i'm missing something.
By the law of cosines, the angle

satisfies

which reduces to

which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
Two ratios that are equal to 7:6 are 14:12 and 21:18, as they are the same, but 7 and 6 are multiplied by the same number (2 in the first, and 3 in the second.)