Answer:
19.206
Explanation:
First you need to find out 10% of 18.
You can do that by 18/100 which is .18.
Then multiply that by 10 which is 1.8 (10% of 18)
His hourly rate decreased by 3% AFTER his raise so you would find 3% of 19.8 and not 18.
You do the same process and divide 19.8/100
Then multiply this by 3 and you can get 0.594
That is how much his raise decreased by so you would subtract it from 19.8
19.8 - 0.594 = 19.206 (Round if needed)
Hope this helps