Ernesto and his friend stop for pizza after baseball practice. the cost of pizza and sodas is $14.00,but they must also pay $ 1.12 in sales tax

what is the percentage of the sales tax that ernesto and his friend would have to pay?

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