Answer:
1: 0.15x = 0.15x * x = discount (percentage) * original price = discount
2: x - 0.15x = x (1 - 0.15) = original price - discount
3: 0.15 x 15.99 = 2.39
15.99 - 2.39= 13.59
x= $13.59
Tubby is not correct. 1.15x is not an expression that represents the new price for the ornament. It represents the original price plus a 15% increase, not a discount. To find the new price after a discount, you need to multiply the original price by (1- the percentage discount) or subtract the percentage discount from the original price.
Explanation: