"Over" usually means divide. First hint, check.
If we write it out, it looks like this:

This is the same as <em>some number divided by 7.</em>
Answer:
Your commission check for the 20% would be $160,000 and your 30% would be $240,000.
Step-by-step explanation:
To find each of these, multiply the total number of sales by the percentage of the commission.
$800,00*20% = $160,000
$800,000*30% = $240,000
6,000 + 700 + 30 + 8 is the expanded from.
(4)x5 is the same as (4)5 or 4 x 5
it equals 20