The formula to find the area of a triangle is

If you have any more questions let me know!
6+z=10x-2
6+z=-20
Z=-20-6
Z=-26
Hope this helps!
Answer:
Joel earns $35.00 commission and the store keeps $715.
Step-by-step explanation:
You need to figure 5% of what he sold - or 5% of $750.
Of course, you can use a calculator, or multiply $750 by .05. I prefer to think of 10 percent ($75.00) and half that to get 5%. $35.00.
Joel earns $35.00 on the sale. Not bad!
If he gets to keep $35, deduct this from the price to find out how much the store will keep.
$750 - $35 - $715.