Ten years ago the father was six times as old as his daughter. After ten years, he will be twice as old as his father . Determine their present age ..

If n stands for number sold and c stands for cost per item, in which column would you use the formula: ? a. column d c. column f b. column e d. column g

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?