A polygon's measurement(s) include which of the following? Check all that apply.
A. Height
B. None of these
C. Length
D. Width

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

parallel lines have the same slope. so if the green line has a slope of -4, the slope of the red line is also -4.

the answer to that one is b