Answer:
x=9
Step-by-step explanation:
50 degrees and (10x-40) degrees are alternate interior angles and are, as such, equal. Thus, 50=10x-40, or 90 = 10x, or x = 9.
Answer:
100
Step-by-step explanation:
10*5*4=200
200/2=100
30 feet is correct. Since a = 3b, the wingspan is 6 inches in the drawing, so it is 6x5 = 30 feet on the plane.