I need answers quick plz, (about angles)

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

Put the equation in slope intercept form by solving for y

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42