dave works part-time for a computer repair shop. he earns $10 for each computer he cleans and $25 for each hard drive he installs. if he did a total of 24 jobs and earned $300, how many computers did dave have to clean and how many hard drives did he install?

Find the value of the cosine for angle a

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212