What is the value of x?

x = 150 degrees

Step-by-step explanation:

A straight line always have 180 degrees.

In this case, y is a supplementary angle, two angles that add up to 180

80 + y = 180

        y = 100 degrees

A quadrilateral always have 360 degrees.

So:

60 + 50 + 100 + x = 360

                 210 + x = 360

                           x = 150

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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