Katie has saved $ 9
Solution:
Given that The regular price of the frame was $ 45
Katie had a " 20% off" coupon
To find: amount saved by Katie
The amount saved by Katie can be found by finding the difference between regular price and price after offer
Let us first find the price after offer
price after offer = regular price - 20% offer on regular price
price = 45 - 20% of 45
[tex]price = 45 - \frac{20}{100} \times 45\\\\price = 45 - 9 = 36[/tex]
Thus the price after 20% offer is 36
amount saved by Katie = regular price - price after offer
amount saved by Katie = 45 - 36 = 9
Thus Katie has saved $ 9
