Answer:
A = 73°
Explanation:
the sum of the interior angles of a figure = (number of sides - 2) * 180
the sum of the interior angles of this figure = (5 - 2) * 180 = 540°
the fifth angle = the sum of the interior angles - the sum of the four angles
the fifth angle = 540 - (104 + 118 + 96 + 115) = 107°
the measure of angle A = 180 (straight angle) - 107 = 73°