Which interval contains a local maximum for this function

If eh = hg and hg=16, find the diameter of k

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.

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers