Um.
change the order or grouping to
sum. explain how you used properties to find th
e order or grouping to find the
63 + 86 + 77 what? they scanned my question didnt give me a answer just gave me my question.

Write the rational number in lowest terms 99/-15

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point

Three friends are comparing the prices of various packages of golf balls at a sporting goods store. hector finds a package of 6 golf balls that costs $4.50.