9.
Solve the following system of equations
3x −2y + 4z = 20
−x + 5x +12z = 73
x + 3y −2z = 1

Select the appropriate response:

A) x =4, y = 3, z = 5
B) x = 2, y = 3, z = 5
C) x = 5, y = 5, z = 5
D) x = 7, y =8, z = 5

The price of a new video game is $59.69 before tax. allison bought the game for 12% off. she then paid 9.25% sales tax on the discounted price.part a: how much did allison pay in sales tax? show all work and steps in your solution. round your answer to the nearest cent. part b: what is the total amount that allison paid for the video game? show all work and steps in your solution. round your answer to the nearest cent