13, 11, 9, 7 what is the recursive rule

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

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal