What is the solution of the following quadratic inequality? x2 – 4x – 21 ≤ 0

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What is the value of the expression 9+n/3-6 when n = 12? 1. 5. 7. 12.

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)