PLEASE HELP Janice decided to go to the basketball game on Thursday night instead of working at the restaurant. What is her opportunity cost for this decision assuming she spent $24 in gas driving to the away game and $8 at the concession stand? Janice normally works 5 hours at the restaurant and makes $7 an hour plus tips. Her tips typically run about $35 on a weeknight.

probability for j is 1/4

while

a is 1/6

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

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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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