If I was given 50 dollars and they bought 12.00 and 6.50 and 4.50 how much do I owe them

An airport in death valley is 60 feet below sea level, and an airplane is flying 2,000 feet above sea level. how many feet must the plane descend in order to land? a. 2060 b. 2000 feet c. 1940 feet d. 1880 feet e.1400 feet will mark as brainliest

What is the measure of the smallest angle in the diagram? 15 29 32 45

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?