Given a regular 20-gon ( a 20 sided polygon )
The measure of each interior angle will be given by:

where n is the number of sides
Substitute with n = 20
So, the measure of each interior angle =

The sum of exterior angles = 360
So, the measure of each exterior angle = 360/20 = 18
Answer:
range: -3<x<7
Step-by-step explanation:
The curve of this function starts at x=-3 and ends at x=7, so this function's range is : -3<x<7
Answer:
25
Step-by-step explanation:
50% is half of something. half of 50 is 25.
Also there is another way to do it. 50/100 = 50%.
50/100 x 50 = 2500/100 = 25. or 50/100 = 1/2. 1/2 x 50 = 50/2 = 25.
5×4=20 , 12×4=48
53÷4 = 13 then
x=13