We know all these angles combined equals 360, so:
3x + 20 + 3x + 20 + x + x = 360
8x + 40 = 360
8x = 320
x = 40
Hope this helps!
2/4 and 1/2
5/10 and 1/2
1/3 and 2/6
40/90 and 4/9
Don't you have the answer on their already
1.=9900
2.=9.3
3.= x= 12.2155
Hope this helps
Answer:
D assuming the black dot means multiplied
Step-by-step explanation:
