Use a two-dimensional representation of the prism, if necessary, to find the area of the entire surface of the prism.

the total surface area of the prism is 72 square units

Step-by-step explanation:

(4×3)+(5×3)+(5×4)+(5×5)

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

me

step-by-step explanation: