Answer:
the correct ans is 37 .
(4x+2)° = 150°.... opposite angles of measure are
congruent.
4x+2 = 150
4x = 150-2
4x = 148
x = 148/4
x = 37.
Area of a triangle is half multiplied by the height multiplied by the base.So multiplying the two together and halfing is shown below
12 x 6s - 8 x 4s = 72s - 32s = 40s
9 is subtracted from the sum of 5 and a number