This is my HOMEWORK i cant figure out these problems i have a test tomorrow and i really need to do good this is a review can anyone help me i really need to do good on this next test

G(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

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.

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?