Find the measure of the indicated angle or arc in P ​

Find the value of a. the diagram is not to scale. a quadrilateral is drawn. the upper and lower sides are parallel. the interior angle in the upper left corner is labeled a degrees. the angle in the upper right corner is labeled 113 degrees. the angle in the lower right corner is labeled b degrees. the angle in the lower left corner is labeled 36 degrees. a. 36 b. 144 c. 54 d. 126

How to use order of operation in 20 divide by 4 multiply 5 = 1

Find the zeros of each function. f(x) = 6x^2 - 7x - 20