Write each collection of numbers using interval notation. (a) All real numbers greater than or equal to -6 (i.e., x 6). (b) All real numbers less than-6 (i.e., x < 6). (c) All real numbers greater than -6 and less than or equal to 1 (i.e., -6 < x 1). (d) All real numbers less than -6 or greater than or equal to 1 (i.e., x < -6 or x 1). (e) All real numbers less than or equal to 1, excluding 6 (i.e., x < 6 or 6 < x 1). (a) Find all values of x such that x - 64 = 0. Enter your answer as a comma-separated list of values. The order of the values does not matter. (b) Find all values of x such that x 64 > 0. Enter your answer using interval notation. (c) Find all values of x such that x - 64 < 0. Enter your answer using interval notation.