A salesperson earns commission on the sales that she makes each mouth.The sales person earns a 5% commissions on the first $5,000 she has in sales. The sales person Earns a 7.5% commissions on the amount of her sales that are greater than 5,000.If the sales person had $8,000 in sales, what amount of commission,in dollars did she earn? Can someone please do Step By Step please ​