Answer: $3.18
Step-by-step explanation:
15% off an object means that you could represent the value with the expression '0.85x', since you could imagine x being the full price and x- 15% of x = x-0.15x = 0.85x.
0.85x would equal 2.70. Then you just divide 2.70 by 0.85 to get x, which is 3.18.
