Are utility costs fixed or variable?

Fixed costs often include rent, buildings, machinery, etc. Variable costs are costs that vary with output. ... Variable costs may include wages, utilities, materials used in production, etc. In accounting they also often refer to mixed costs.

Step-by-step explanation:

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.