Please help me workout this zero-product property

(X-6)(x+1)=0

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

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Is a square always, sometimes, or never a parallelogram