Im not sure, but i will try to get back to you
Answer:
median: 28
mean: 55 + 25 + 28 + 42 + 25 = 175 175 / 5= 35
Step-by-step explanation:
median is the number that is in the middle of all of the other numbers
mean is when you add all of the numbers together and then divide the total depending how many numbers you added together.
The last two would be your answer :)
4*(10*12/2)+4*(12*9)+(12*12)= 816 ft^2
the surface area is 816 ft^2.