We already know that the sports agent already makes $40,000 a year regardless of how much she sells, we also know that she has sold three products for $175,000 each, and makes 9% commission on all her sales, using this information, this is how you would find her total earnings.
Lets start by finding the total amount of money of the three products she has sold. You can find this by multiplying 175,000 by 3.
175,000 x 3 = 525,000
Now that we know that in total she has sold $525,000 worth of products, we can find how much she made commission for selling these items. You can find this by converting 9% to a decimal, which would be .09
Now we should multiply the total $525,000 she has sold of products by .09
525,000 x .09 = 47,250
Now we know that she made $47,250 from commission, however we are not done until we find the total amount of money she has made. We can find this by simply adding her $40,000 to her commission of $47,250.
40,000 + 47,250 = 87,250
This shows us that the sports agent has made a total of $87,250