Please help. Will give brainliest and would really appreciate it.

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.]

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

Write the equations in logarithmic form 10^3=1,000