In four plays a football team gains 3 yards, loses 7 yards, loses 2 yards, and gains 15 yards. How many yards did the team gain after four plays?
What is 9 yards
500
You purchase 7 notebooks at the price of $1.98 each. Use the expression 7(2-0.02) to find the total cost (indollars of the notebooks.
What is $13.86
500
A department store is selling its plastic shoe boxes for $1.5 off the regular price of a shoe box. You buy 4 shoe boxes. Write an equation that gives the total cost "t" as a function of the regular cost "r" of a shoe box.