What kind of triangle has angles of 40°, 50°, and 90°

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

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction

Fiona has to plot a histogram of the given data