The measure of the exterior angle of a regular polygon is the quotient when a whole revolution, 360 degrees, is divided by the number of sides (n). This is shown in the equation,
A = 360 / n
From the given above,
40 = 360 / n ; n = 9
Therefore, the answer is letter B. 9.
Answer:

Step-by-step explanation:
425 because if you put these number in fractions such a$ 170/10 with x/25 you would cross multiply 170 with 25 then divide by 10
Coefficient of y = 3
Solution:
Given expression is 2 · 4 + 3y.
To find the coefficient of y:
Coefficient means the number in front of the variable or term.
Here, the number in front of y is 3.
2 and 4 are not in front of y, they are separate term.
So, Coefficient of y = 3.
Hence the coefficient of y in the expression 2 · 4 + 3y is 3.