Answer:
c=28
Step-by-step explanation:
In a convex polygon, all the exterior angles are congruent to each other.
I'll be choosing the two angle degrees of 4c-28 and 3c and set them equal to each other.
4c-28=3c
Therefore, c=28
Answer:
10% decrease
Step-by-step explanation:
The formula for percent change is:

Therefore, for this example:

The negative value indicates that the change was a decrease. Therefore, there was a 10% decrease.
Answer:
To find out the coordinates of a point in the coordinate system you do the opposite. Begin at the point and follow a vertical line either up or down to the x-axis. There is your x-coordinate. And then do the same but following a horizontal line to find the y-coordinate.
Step-by-step explanation:
The answer would be 10 since 10 times 5 is 50 and a line equals 180 so the answer is A.10