Question

plz give correct ans with explanation​

Answer 1

Step-by-step explanation:

140 is the correct answer

Answer 2

Answer:

a:b

4:5

a =4x b=5x

angle poy=90°

MOX+MOP+POY=180{angles on a straight line}

b+a+90=180

4x+5x+90=180

9x=180-90

9x=90

x=90/9

x=10

a=4x

4*10=40

b=5x

5*10=50

MOX+XON=180{linear pair}

b+XON=180

50+XON=180{because b=50}

XON=180-50

XON=130°