If you round off 23 to nearest ten. what is the answer

Determine which postulate or theorem can be used to prove that lmn =nmo

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

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3