a store bought a diamond ring at a cost of 8000 and marked it up 25%.Tommy bought it and paid 15% sales tax.what was his total cost?

Respuesta :

You do 8000×.25 to get 2000
then add 8000 to 2000 to get 10000
then multiply 10000 by .15 to get 1500
then add 10000 to 1500 to get your answer which is 11500