Double number line, you draw one number line on top of each other. Since you only have 2/3 out of a whole, you only need 1 number line. So separate 2/3 into 4 pieces and you get your answer.
Answer:
X=4
Step-by-step explanation:
-2-10x+100=7x+30
-10x+98=7x+30
-17x+98=30
-17x=-68
17x=68
x=4
All angles on a triangle add up to 180. If it's a right triangle it would be set up like this: 90+3x-4=6x-5=180. You would subtract 90 from 180 and get 90 left. 3x-4+6x-5=90. Then you would add 5 and 4 to 90.....3x+6x=99. Then you add 3x and 6x then you would be left with 9x=99. Divide 99 by 9 and you get x=11.
64
There are 6 options so it would be 2^6
If you don’t count the empty set it would be 63.
I’m pretty sure this is right I did it in my head so lmk if I’m wrong lol