Answer:To determine the rate of the discount, we can use the information provided:The original cost of the T-shirt is 180.The discount saves 9.First, we calculate the discount rate. The discount amount can be expressed as a percentage of the original price:Discount Rate=Discount AmountOriginal Price×100Discount Rate= Original PriceDiscount Amount ×100Substitute the given values into the formula:Discount Rate=9180×100Discount Rate= 1809 ×100Calculate the fraction:9180=0.051809 =0.05Convert to a percentage:0.05×100=5%0.05×100=5%So, the rate of the discount is 5%.
Answer:5%Step-by-step explanation: