The fraction that is represented by point A of the number line shown is 
Answer:
Hello! answer: 10
Step-by-step explanation:
If its a supplementary angle the other angle will equal 10 because supplementary angles add up to 180 degrees therefore 10 is the answer HOPE THAT HELPS!
Answer:
225
Step-by-step explanation:
Mary = 3x (3 times Carey)
Carey = x
Barry = x/2 (Because Carey read twice as many as Barry, it means he read half the amount Carey did)
3x + x + x/2 = 405
4x + x/2 = 405
8x/2 + x/2 (treat these as fractions) = 405
9x/2 = 405
9x = 810 (cross multiply)
x = 90
Mary = 3(90) 270
Carey = 90
Barry = 90/2 45
Mary - Barry
270 - 45 = 225
Hope this helps! :)
N(3)-8=16
add 8 to both sides
3n=24
Divide each side by three
n=8