Let
S------> The sum of the measures of the interior angles of a polygon
n-------> number of sides of a polygon
we know that
The formula to find the sum of the measures of the interior angles of a polygon is equal to
°
in this problem
°
Solve for n

therefore
the answer is

X is the number of movies for the cost of the plan to be the same.
4.25x=36+3.5x
4.25x-3.5=36
0.75x=36
x=36/0.75
x=48
Answer: 36
Step-by-step explanation:3 sides of 12 12x3= 36
Answer:
The slope is 70
The slope represents the speed of your car
Step-by-step explanation:
The slope is 70, y = mx + c, where m is the slope
The slope represents the speed of your car
speed = distance/time
speed x time = distance
As y represents the distance you travel, x is the time, slope is the speed, you get the distance travelled.
x=6
if you multiply 4 by whats inside the parenthesis you get 5x+16x+44=170
next combine like terms and get 21x+44=170
next subtract 44 from itself and 170 to get 21×=126
finally divide 21 from both sides and you get x=6
hope this helps!