Melissa is a real estate agent. She makes a base salary of $450 per week plus 1/2% commission on her sales. If she sold a house for $549,000 last week, how much did she make in commission?

6. sarah saved $12.75 every week for a number of weeks, w. she received an additional $25 during the last week in which she saved money. write and solve an equation to find the number of weeks, w, for which sarah had saved money if she has $114.25 now.