\dfrac{4}{r} = \dfrac{5}{7} r 4 = 7 5

Solve for r

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good