Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations

X-y+4z=23
2x-y+z=-1
6x+4y+2z=-44

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !