Yes, all numbers are real numbers because a number is a number, and nothing can change that. I hope this helps you!
Answer:
ANSWER IS: 1/18
Step-by-step explanation:
TRUST ME.
1. plug in the numbers for the variables, like this: 9(-5)+18(-1)
2. solve
Hopefully this helps! Let me know if you need more explanation.
-3.132 is the answer, you just had to multiply all of them one at a time (: