Simplify the following without using a calculator
a)
- 4 x (8-(-3)) + 7​

Is every rectangle is a parallelogram? true false

Find the value of the cosine for angle a

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