A tennis racket at Sport City costs $180 and is discounted 15%. The same model racket costs $200 at Tennis World and is on sale for 20% off. Which store is offering the better deal?(Give evidence or you won't get the points?

Sport City has the better deal

Step-by-step explanation:

At Sport City, the cost of the tennis racket would be:

180  ⋅  0.85 = $ 153

(I used 0.85 instead of 0.15 because 0.15 is finding the discount amount, not the actual amount after the discount. Got 0.85 by subtracting 0.15 from 1.)

At Tennis World, the cost of the tennis racket would be:

$ 200 ⋅  0.80 = $ 160

(I used 0.80 instead of 0.20 because 0.20 is finding the discount amount, not the actual amount after the discount. Got 0.80 by subtracting 0.20 from 1.)

Sport City has the better deal because after the discount it is selling the racket for  

$ 153

, while Tennis World is selling it for  

$ 160

. Tennis World is selling it for  

$ 7

more than Sport City.

Sport City

Step-by-step explanation:

180 * .15 = 27

180-27 = 153

200 * .2 = 40

200 - 40 = 160

ok

step-by-step explanation: