Ok so I can’t answer it but here you goooo:)
Your question wasn't posted clearly.
It would be difficult to help you.

It's all one big mess.
Was it supposed to be two or three separate expressions?
Go 3+4+2 to determine for 1 row and then multiply that by 64 so 576
C=0.05(125000)+500
C=6250+500
C=6750
comission is $6750
8 because x + 8 =y Example : 18+8 = 26