Question

Help me plssssssssss

Answer 1

Answer:simple 320 x 2 x = 640

Explanation:

Answer 2

x = 40 degrees

Explanation:

a quadrilateral must have 360 degrees inside of it

so

to find what x is

we must subtract all the other angles from 360

100 + 100 + 120 = 320

360 - 320 = 40

x = 40

that is your answer