As a salesperson at scrapbooks and treasures, alysse receives a monthly base pay plus commission on all that she sells. if she sells $400 worth of merchandise in one month, she is paid $388. if she sells $1,000 of merchandise in one month, she is paid $520. what is her salary if she sells 3,300 worth of merchandise.

So with a $600 difference on selling merchandise, there is a $132 difference in how much she earns. So basically, for every $100 she sells, she gets $22 in return. So if we multiply 22 by 23, we get 506, which is how much extra she is paid from selling $1000 to selling $3300. So just add 506 to 520, and you get $1026 as how much her salary is.

Hope this helped, hope this answer isn't too late! :)

The correct answer is addition