Find the value of a. then find the angle measures of the quadrilateral. a=_ the angle measures from least to greatest are _∘, _∘, _∘, and _∘

To solve this problem you must apply the proccedure shown below:

1. You know that the sum of the angles is degrees. Therefore, you must sum them and solve for :

degrees

2. Therefore, the angles are:

degrees

degrees

The answers are:

degrees

degrees, degrees, degrees, degrees

8(-10x+3.5y-7)

8×-10x + 8×3.5y + 8×-7

-80x + 28y - 56

therefore

-80x+28y-56 is the correct answer