business math

[supertina]

Leo pays its employees on a graduated commission scale 6% on 40,000 sales 7% on sales above 40,000 to 80,000 and 9% on sales greater than 80,000 dan had sales of 105,000 what is his commission

 

[tkhunny]

Please show ANY work at all. If you cannot do the first piece, you are in the wrong class and should punt.

Go ahead, get us started.