The graph of the system of linear equations below is shown in the coordinate plane.
4y = -3x - 1
2y = x - 13
Why is the point (5, 4) a solution to the system?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

What is the solution to the equation below? 3/x-2+6=square root x-2 +8