Which phrase represents the algebraic expression for n – 4? A. The quotient of a number and four.
B. Four less than a number.
C. Four minus a number.
D. Four more than a number.

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.