Plug in y in the bottom equation
5x + 6x = 44
11x = 44
X= 4
The exterior angles on this diagram are angle 4 and angle 2.
We can see this because an exterior angle is the angle that forms a straight line with an interior angle, so that 180 - [interior angle] = [exterior angle].
Therefore, angles 4 and 2 are the only angles that form straight lines with interior angles, so they are thus the exterior angles.
I hope this helps!
When working with logarithms, remember that a subtraction sign means you can divide.
log(400) - log(4) can be turned into log(400/4), which is further simplified to log(100).
