All you need to do here is know where and how to plug in the numbers. In each equation, you'll have an initial fee, and an hourly fee, so your equation will be
y = i + hx, where i = the initial fee, and h = the hourly fee
So, after plugging them in, here's what you get:
Doors Galore: y = 40 + 50x
G&H: y = 60 + 40x
There are exactly 360° in a circle, so the angle measure would be 3/360 * 360 = 3°.
Step-by-step explanation:
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x = normal water level
x - 12 - 13 = x - 25
so it is 25 feet below the normal water level