Final answer:
To find out how many meters of ribbon the club bought, multiply the length of one roll of ribbon by the number of rolls bought. Then, to find the total cost, multiply the number of meters of ribbon by the selling price per meter. The club bought 141.75 meters of ribbon and the total cost is $283.50.
Step-by-step explanation:
To find out how many meters of ribbon the club bought, we need to multiply the length of one roll of ribbon (6.75 meters) by the number of rolls bought (21).
So, 6.75 meters x 21 rolls = 141.75 meters of ribbon bought.
To find the total cost, we also need to multiply the number of meters of ribbon by the selling price per meter ($2).
So, 141.75 meters x $2 = $283.50.
Therefore, the club bought 141.75 meters of ribbon and the total cost is $283.50.