3. Graph the system of linear inequalities. Show work for writing inequalities in slope-intercept form. Make sure the solution region is clear in your graph.
2x < -y + 9
-2y - 6 ≥ -2x

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

What is the sum of these mixed numbers 2 1/8 + 4 3/8

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25