NEED HELP! THIS IS VERY IMPORTANT Find the value of the missing angle give reasons to support your answer.Quadrilaterals

Answer:
a, x=72° b,a=70° & b=80°. c,a=96°. d,a=80° &b= 100°. e,a=90°. f,a=75°. g,a=80°,b=70° & c=110°
quadrilaterals has total of 360°