Answer: 21
Step-by-step explanation:
420/20=21
$30 because 12/6 = 2 so 15 x 2 = 30
Answer:
Step-by-step explanation:
The roots of a function are the x-intercepts. By definition, the y-coordinate of points lying on the x-axis is zero. Therefore, to find the roots of a quadratic function, we set f (x) = 0, and solve the equation, ax2 + bx + c = 0.
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