Andrew has pencils and erasers. The ratio of the number of his pencils to the number of his erasers is 2:6. If Andrew has
36 erasers, how many pencils does Andrew have?
pencils
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Me write an equation for the interior angles of this triangle that uses the triangle sum theorem

Having a hard time understanding this question (see attachment).

Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function