Solve the syetems of equations:
-4x+10y=40
4x+10y=-30

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

Find the cosine function that is represented in the graph.

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?