need help asap
Will mark brainllest to who ever gets it right :)

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g