Answer:
12
Step-by-step explanation:
hope u find this helpfull
Answer:
a). We want to know how much each point was worth.
b). 
c). Each problem worth 3 points.
Step-by-step explanation:
a). We want to know how much each problem was worth. Because we have the total points of the test, and how much was the bonus. But we still don't know the worth of each problem.
b). We know that the total points of the test were 41, and the bonus 5 points. There were 12 problems on the test and we are going to use "x" for the unknown part (how many points each problem was worth).
The equation is :

Why 12x? Because if you multiply the twelve problems of the test with the worth of each one and then add the 5 points of the bonus you will obtain the total points of the test (41).
c). Now we have to solve the equation, this means that we have to clear "x":

Subtract 5 from both sides.

Finally divide in 12 both sides of the equation:

Then each problem worth 3 points.
Answer:
57mm
Step-by-step explanation:
C=2(pi)(r)
C=2(3.14)(9)
C=56.52
rounding up, its 57mm
72 people questioned , 12 are going . that means that 16.6..% of which are going , 16.6....% is equal to 1/6 so 210 x 6 = 1260 . the number of students that attend the school would be 1260 if im right but if its how many students attended the play then it would be a 1/6 of 210 which is 35

Actually Welcome to the concept of Surface Areas and Volume.
==> Volume of Cylinder = πr^2h
==> 27π = πr^2(3)
==> 27 = r^2 (3)
==> r^2 = 9
==> r = 3 inch
hence the radius is 3 inches.