Aman is hiking in death valley. he starts at an elevation of 65 feet above sea level and descends to an elevation 30 feet below sea level. how far did the hiker travel?

What is the y-coordinate of the solution of the system of equations? [tex]y = 2x + 14 \\ - 4x - y = 4[/tex]y=

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?