Q1:- State whether the following statements are true or false.- 5 ∉ {3,7,11,14}- i ∉ {a, i,j, k}- 4 ∉ {x: x is an even number}

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k

Can someone me and do the problem plz so i can understand it more better