Question 1

a cylinder has a radius of 14 m and a height of 6 m. what is the exact volume of the cylinder?

504π in3

84π in3

1176π in3

168π in3

1 points
question 2

what is the exact volume of the cylinder?

390π in3

5070π in3

780π in3

11,700π in3

1 points
question 3

what is the approximate volume of the cylinder?

use 3.14 for π.

15,775 cm3

628 cm3

1256 cm3

5024 cm3

1 points
question 4

determine the volume of a cylindrical bucket if the diameter is 8.5 in. and the height is 11.5 in.

652.2 in3

882.4 in3

306.9 in3

2608.9 in3

1 points
question 5

a cylindrical garbage can has a radius of 2.8 feet and holds approximately 86.21 cubic feet of trash. find the approximate height of the garbage can.

1.9 ft

9.8 ft

5.2 ft

3.5 ft

1 points

Riki ...
Most questions on offer 5 points in return for answering one question,
but here you've listed five of them to be answered for 5 points.  That's kind of
much.
Also, it's not clear what cylinders Question-2 and Questioin-3 refer to. 
They might be the two pictures under the question, but we don't rally know.
Fortunately, all five of your questions are answered with the same formula ...
the formula for the volume of a cylinder.
Here it is:

         Volume of a cylinder = ( π ) · (radius)² · (height or length)  .

                                       V  =  π  R²  H  .

That's it.  That's all you need to answer any or all of the five questions.
So I've actually given you everything you need to answer them, and in
doing that, I've already earned 5 points.  But, being the ever helpful guy
that I am, I'll work out two of the questions for you, to show you how to
use the formula.

Question #1).  A cylinder has a radius of 14 m and a height of 6 m.

              Volume  =  π  R²  H 

                           =  (π)  (14m)²  (6m)

                           =  (π)  (196m²)  (6m)

                           =      1,176 π  m³  =  71,763,930 π in³

(Notice how confusingly and sloppily the question is written . . .
the dimensions of the cylinder are given in meters, but the
answer choices are listed in cubic-inches.  I've shown the
answer in both units.)

Question 5).  A can has a radius of 2.8 feet and holds 86.21 cubic feet.

           Volume  =  π  R²  H

           86.2 ft³  =  π (2.8 ft)² (Height)

            86.2 ft³  =  π (7.84 ft²) (Height)

           Height  =  (86.2 ft³) / (7.84 π ft²)

                        =         3.5 ft

C

7x the number of visitorsex. 3 visitors would be 7 x 3 =21$ total