You want to do some sightseeing from the sky, so you want to rent a helicopter. One service charges $100 plus $80 per hour. Another service

charges $250 plus $70 per hour. At what number of hours will the cost to

fly in the helicopter be the same? *

This law is sometimes called the grouping property. as you can see, regardless of how the numbers are grouped, the answer is still 13. the associative law of multiplication is similar to the same law for addition. it says that no matter how you group numbers you are multiplying together, you will get the same answer.