The sum of two numbers is 15. When the second number is subtracted from the first​ number, the difference is 11. Find the two numbers. What are the two​ numbers?

Is a positive integer raised to a negative power always positive

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

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