Need again asap! math people only. will give brainliest, ton of points only for the right answer. the graph shows the height of a tire's air valve y, in inches, above or below the center of the tire, for a given number of seconds, x. how many degrees does the valve move per second? actually use the right calculations, no guessing, and explain because i am stupid. don't just give a wrong answer for points . answer options: 9 degrees 18 degrees 60 degrees 120 degrees

12/11c

or

12

c

11

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).