Solve each system by substitution
y=4x-9
y=x-3

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds. then use the distributive property and mental math to evaluate the expression.

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.