Mr. martin bought a microwave that was originally priced $225. he received a 30% discount. what is the sale price of the microwave.

I have a simple but slightly time consuming way of doing this. Find 30% of 100 double it and then find 30% of 25, add the two together... In this case 60 + 7.5. After you do that subtract that number from 225. So subtract 67.5 from 225 and there is your answer. Your answer is 157.5

1. 3/6 or 1/22. 1/123. 1/84. 1/105. 2/12 or 1/6