When the Nelsons sold their house they paid the realtor a fee of 6% of the selling price. If the house sold for
$180,000, how much was the realtor's fee?

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

How to do this , and can some one explain