What is the final cost of an item that is $120 after a 15% discount and 6% sales tax?

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?

What numbers are included in the set of integers? what numbers are not included?

Can someone me with the property questions for 12 13 and 14 plz