Mt. mckinley, which is the highest elevation in north america, is 20,320 feet above sea level. death valley, which is the lowest elevation in north america, is 282 feet below sea level. what is the difference in height between the top of mt. mckinley and the bottom of death valley?

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? will mark the

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Two numbers have a sum of -19. one number is x. what expression represents the other number?