The correct answer should be B which is 26.1
The full answer is 26.16
The amount of paint required by Madeline will be 0.8325 gallons
<h3>What amount of paint will be required by Madeline?</h3>
Given that

We will first find the area of the wall
Area of the wall = Area of trapezoidal shape+ Area of triangular shape
Area of trapezoid = 
a= 4cm
b=14cm
h=10cm
putting this values


Area of triangular shape= 
width=14cm
height=8cm
putting the values


since we have


Now

so for
amount of paint in gallons required will be


Thus the amount of paint required by Madeline will be 0.8325 gallons
To know more about the area of trapezoid follow
brainly.com/question/1463152
<h3><u>MEAN</u></h3>
Mean is the average. To find the mean of a data set, you have to add all the numbers and divide the sum by the amount of numbers you added.
<em>In this equation, you have 8 numbers. That means you will be dividing by 8. </em>
The first thing you need to do is add all the numbers. Add:

Now that you have added all the numbers and got the sum, divide by 8. Remember that you will be dividing by 8 since you added 8 numbers.
Divide:

The mean is 66
<em>If you have any questions, feel free to ask in the comments! :)</em>