The answer to this question is 25%
Answer:
600
Step-by-step explanation:
anything times 1 is itself
10% discount means you pay 90% of the original cost x.
90% of x = $40.50
0.90x = $40.50
x = $40.50/0.90 = $45
:::::
total cost = 1.065·$40.50 ≅ $43.13
