Answer:
The price after the markdown is 36 dollars.
Step-by-step explanation:
First, I found out what 10% of 45 is by moving the decimal point 1 time to the left, getting 4.5. Then I multiplied each value by 2 to get 20% and 9, meaning that 20% of 45 is 9. Then 1 subtracted 9 from 45 to get 36.
