Carlo and anita make mailboxes and toys in their craft shop near lincoln. each mailbox requires 3 hours of work from carlo and 4 hours from anita each toy requires 3 hours of work from carlo and 2 hours from anla carlo canot work mone than 12 hours per week and anita cannot work more than 12 hours per week, if each mailbox sells for $15 and oah toy sells for $23, then how many of each should they make to maxinze heir revenue? what a thair maximum rvenue carlo and anita should make toys. their maximum revenue is $ maiboxes and

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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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