I was shot a couple of times, PLEASE HELP?

When using the linear combination metho e linear combination method to solve a system of linear equations, the four options are:

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Solve for n. round to the tenths place, if necessary. 14.2 cups of flour6 loaves of bread= 20 cups of flour n