Given: a = {a, e, i, o, u}, b = {a, l, g, e, b, r}, c = {m, y, t, h}, a ∩ c is m, a, e, i, o, u, t, h the empty set i a, e, i, o, u, y

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)