While deciding whether to get a job or to continue your education, you consider two small, local companies that are hiring: kwikfix and mongorama. you learn that both employers consider you to be on par with their average worker. you do some research on the hourly wage each company pays. you find that mongorama pays nine employees $9.00 per hour each, while one employee makes $30.00 per hour. kwikfix pays two employees $9.00 per hour, five employees $10.50 per hour, two employees $12.00 per hour, and one employee $16.50 per hour. 1) calculate the mean and the median for the salaries of the two companies, each of which has 10

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answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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