bottom right the formula is as you said 4pir^2 8yrd is your radius
so what you do is plug it in 4(pi)8^2 to get = 804.24772 yrds and the volume is as you say 4pir^3 all over 3 which is
4 pi (8)^3 /3 you get 6433.98175455 then you divide by 3 and get 2144.6605845
the volue is the base times height so we have to find the area of the base then times it by the height so the area of a circle is pir^2 which is pi(8)^2= 201.0619298 then times it by 13 for the height and you get 2613.80508m^3 and the area is using the formula you have
for the area of the circle is 2pi r^2 since we have 2 circles and that is = 2pi8^2= 402.1238596594 then the formukla for the height is 2pirh which is 2pi8*13=653.451271946677 add that to the answer from before and you get the surface area as 1055.575m^2
square base pyramid so you need to fnd the area of the base and add it to the area of the triangles.
the base is a square so 18*18=324m^2 for the base then we have 4 triangles and the formula for that is 1/2*base*height in this case 4(1/2)(base=18)(height=15)= 540m^2 then add the base and you get 864m^2 for the surface area and for the volume of a triangular pyramid you do base^2 * height/3 which is 18^2 *(12/3) = 324*4= 1296m^3 for the volume
as for the left side i am running out of time so i will just post the answers in a few minutes since they are the exact same as the right side