Need help! i know this is easy but I don't get how to do it

C

Step-by-step explanation:

-1.5 - - 0.6 = -2.1 / -1.5 + 0.6 = -2.1    (Cause 2 negative signs make a plus sign)

Have a great day! Can u mark me as brainlist? :)

Happy to help, and I get why you didn't get it

You could always ask g.o.o.g.l.e lol

-2.1 - 1 1/2 = 0.6

-2.1 - 0.6 = -1 1/2

G.o.o.g.l.e

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).