S=30-r(30) It's an equation i'm trying to figure out. I'm trying to find the discounted rate for the shirt. The shirt's reatil price is 30, but the clearance price is $18. So can someone help me find the discount rate and r?
+36916 You are given S=18
18 = 30 - r(30) subtract 30 from both sides of the equation
-12 = - r(30) Divide both sides by -30
12/30 = r = 2/5 2/5 x 100% = 40 % = r
