Pls help with mathmatics

What is the binomial expansion of (2x-3)^5

What is the range for 31,39,29,34,37,24,36,33,34,28

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]