Let f and g be polynomials of degree 3. Is it true that f ∘ g = g ∘ f?

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

Asequence is a function whose is the set of natural numbers