I need help on letter b.

The second team that's list starts with 36

Step-by-step explanation: Both teams has a median of 40 but for the  first team the mode  was 31 while for the second team the mode was 40.

The correct answer is

C.)

Step-by-step explanation:

We can divide the total volume of the silo into two :

A cylinder with a radius of 2 ft and height 10 ft

And a cone with a radius of 2 ft and height 3 ft

The volume of a cylinder with radius R and height H is :

The volume of a cone with radius R and height H is :

In the exercise, the volume of the cylinder with radius 2 ft and height 10 ft is :

The volume of the cone with radius 2 ft and height 3 ft is :

Rearranging the expression :

In the expression, we write the height of the cone as the difference between 13 ft and 10 ft

The correct option is option C.)