1) a.30
3) complementary: 12 and 78
supplementary: 102 and 78
You can see the polygon in the attached figure.
It's a trapezoid, so it's not equilateral, nor regular.
Answer:
$68.44 for each additional belt
Step-by-step explanation:
The cost and revenue functions are:

The profit function, P(x), is given by subtracting the cost function from the revenue function.

The derivate of the profit function gives us the rate at which profit changes:

For x = 484, the rate of change is:

Profit is increasing by $68.44 for each additional belt
Answer:
-5
Step-by-step explanation: