Question 2 1 pts (-6x + 13y-16z = -39 which matrix represents the linear system of equations: 2x + 5y + 7z= 21 (12y-10z 24 -161-391 -6 13 2 5 7 21 12 -10 24 [-39 6 13 -161 21 2 5 7 -101 0 24 12 -6 13 -161 2 7 0 12 -10. 6 13 16) 2 7 12 10 n

Do not comment if you aren’t going to . create a real-life situation and create a system and show how it might be modeled algebraically with a system of equations (or inequalities) show all work include a few sentences explaining the situation, your variables of choice and what each represents, and how you would set it up and solve it algebraically. !

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb