There are 36 tables set up for the graduation reception. Each table is 8 feet long. The tables will be covered with paper tablecloths that extend an extra 3 inches over each end. What is the total length of paper needed to cover all the tables?
each table needs 8 feet + 2x3 inches = 8.5 feet (6 inches is 0.5 feet)
you have 36 tables so
36 x 8.5 = 306 feet
