Question

1
What is the cost of a $45 jacket that is on sale for 30% off?

Answer 1

the cost would be $31.50 because in this case 30% is 13.5.

Answer 2

The answer is : 31.5
To start you need to get 30% of 45 by doing:
45 x .30
Which will get you to 13.5
Then subtract the 13.5 from 45
45 - 13.5 which is 31.5