the function M(x) -1/45x^2+2x-20 where 30 65 represents the miles per gallon used by a certain brand of car at a speed of x miles per gallon.

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)