100 Points first 5 people get braininess good luck

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

Find the nonpermissible replacement for binthis expression.b2/5b +5