The square of a number is 12 less than 7 times the number. whats the number

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

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 the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?