Answer:
x = -3
Step-by-step explanation:
5x + 3 = 4x,
x + 3 = 0,
x = -3
Answer:
12
Step-by-step explanation:
The sum of the measures of the interior angles is given by:

n:sides of the polygon
And in a convex polygon the sum of the exterior angles sums 360°
Then

You just solve it and the answer is 12.
I need a picture so i can help you out.
6.5 lbs/100lbs but what is it out of? 6.5 lbs out of what? 6.5/10 6.5/10000000lbs???
19-y because you are taking away y from 19