What are the solutions to the equation (x-3) (x+5) = -15

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

How do i get my dad to stop making me gargle his pickle i want my mom to gargle my pickle not my dads

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?