Given the two expressions shown below: square root of 64 plus square root of 5 square root of 64 plus square root of 4 which statement best describes the two expressions? both are rational. both are irrational. a is rational, but b is irrational. a is irrational, but b is rational.

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.]