Help me now please ive been in this question for a really long time

Step-by-step explanation:

Since we are given the perimeter and the triangle sides we can find the length of the three sides of the square

2(20)+3s=112

3s=72

The total length of the three sides is 72 inches with each side equal to 72/3=24 inches.

The area of the triangles is hb/2 where the base is equal to the side of the square and a height of 16.

The area of the triangle is 24(16)/2=192in^2 and the area of the square is 24(24)=576in^2

And the total area is 192+576=768in^2.

(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

vbbv

step-by-step explanation: