In how many ways can a supermarket chain select 3 out of
12 possible sites for the
construction of new
supermarkets?

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

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells, n, and the total amount he earns in a year, e. what is the total amount abe would earn from selling 10 apartments in one year

Graph the equationy= x+3[tex]y = x + 3[/tex]