For your summer babysitting jobs you have 10 weeks to work before your family vacation and before you return to school in the fall. you are planning on earning and saving at least $1500 for your future car. mrs. harris is paying you $8.00 an hour to babysit during the day and mrs. sanchez is paying you $6.00 per hour to babysit her child in the evening.

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