Answer:
This is an example of distribution
Step-by-step explanation:
The reason why is because the equation is linear and if you exclud the y it show that it can distribute.
The answer would be answer choice B.
Answer:
2340
Step-by-step explanation:
Formulae for sum of interior angles is 180(n-2)
Whereby n=number of sides

The measure of angle 6 can be found by subtracting the measure of angle 13 from 90.
90-13 = 77
If you need an explanation please ask, but basically solve for y with the given equation