Mailing earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop how much would she make in a work week if she sold $4,800 worth of merchandise

Commission is 6.5% since its a percent you want to convert it into a decimal so you want to divide by 100 : 6.5/100=0.065.

now since its a decimal you want to times it by how much she made:
4,800*0.065=312 hopefully this helps.