It will be b after you do the math
It would be 40•.25=10 which means 40-10=30 so it’d be .25 and you’d move the decimal over 2 spots so it’d be 25% off
Answer:
52
Step-by-step explanation:
The sum of the interior angles of a polygon is
sum = 180° (n - 2) ← n is the number of sides
Here the sum = 9000°, thus
180° (n - 2) = 9000° ( divide both sides by 180° )
n - 2 = 50 ( add 2 to both sides )
n = 52