Classify the variable according to the set of numbers that best describes its values. "The day d for which an appointment is scheduled"
a. irrational numbers
b. rational numbers
c. integers
d. natural numbers

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.