An online music club sells compact discs for $13.95 each plus a single $1.95 shipping charge. If Maria’s total bill was $85.65, how many compact discs did Maria purchase? Hint: write an equation for the situation, then solve it. Please put only the number of CD's purchased in the space provided.

The vertices of a rectangle are given in the columns of the matrix . if is found to perform a transformation, what are the coordinates of the transformed rectangle? (0, 0), (0, –3), (–3, –3), (–3, 0) (0, 0), (0, 3), (3, 3), (3, 0) (0, 0), (0, 3), (–3, –3), (–3, 0) (0, 0), (0, 3), (–3, 3), (–3, 0)

What’s 8y+48 and factor each expression completely

3x + 4y = 5 x- 3y = -7 solve by substitution