Evaluate the integral by making the given substitution. (use c for the constant of integration.) dt (1 − 8t)3 , u = 1 − 8t

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)