Answer: Yes, -18 can be identified as an integer, rational, and real number.
Step-by-step explanation:
Real: Yes
Rational: Yes
Whole: No
Integer: Yes
Irrational: No
Step-by-step explanation:
Real number? Yes. We can plot this number on a number line, and can be used to show the value of something real.
Rational number? Yes. This number can be expressed as the ratio of two other numbers.