Mr. King is considering a new job. He and his wife sit down to create a list of their monthly expenses, as shown in the table below. Which of the following annual salaries will meet their standard of living?

$38,000

$42,500

$41,400

$47,200

42,500

Step-by-step explanation: my teacher gave answer not sure how to get it though

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

thats not a system of equations, that is a solution