You are working as a cashier at a computer supply store. School is starting soon, so the state is hosting a sales tax free weekend today and tomorrow. A customer buys one flash drive for $14.90 and a power strip for $12.50. If the customer hands you two $20 bills, how much will you give him back in change?

Respuesta :

axrose
Add the purchases of the customer. Subtract it from payment. 
YukkiD
add 14.90 and 12.50 to get 27.40 so you will take -7.40 dollars from him