Supplementary angles need to add up to 180 degrees.
Subtract Y from 180:
X = 180 - 156 = 24
X = 24 degrees
I don't really understand what you're asking, but if you're asking the sum of 8 plus 10, it's 18. Sorry if I didn't help, you can try clarifying though :)
Take the area of the room and subtract the area of the rug.
12*10-7*5=
120-35=
85
Answer:
32/166=9/29 if two ratio are equivalent to other