Find the volume of the sphere. Either enter an exact answer in terms of or use 3.14 for and round your final answer to the nearest hundredth. HURRYYY

The salesperson earns a 5% commission on the first $5,000 she has in sales. the salesperson earns a 7.5% commission on the amount of her sales that are greater than $5,000. this month the sales person had $8,000 in sales. what amount of commission, in dollars, did she earn?