Robert is conducting an experiment where he flips a two-sided coin 2 times. how many different combinations of outcomes could the experiment have?

3

Explanation:

Flip 1: Heads or Tails

Flip 2: Heads or Tails

Possible outcomes: (H, H) or (H, T) OR (T, H) or (T, T)

Different combinations:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

the answer is 62.8 cubic units