Algebra 2

a) determinant (of a matrix): (4.3) b) discriminant: (5.4) 2) Write a linear system that represents the following. (3.3) Solve the system and answer the questions. Puff Daddy went to the store and bought 3 CDs & 2 movies for $49. The next week he bought 2 CDs & 4 movies for $70. How much did each CD cost? ................
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