What is the areas of these

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

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?