Answer:
12 x 12 = 144, 12 x 13 = 156
Step-by-step explanation:
The set of real numbers is all numbers that can be shown on a number line. It also includes rational numbers, which are numbers that can be written as a ratio of two integers, and irrational numbers, which cannot be written as a the ratio of two integers.
Answer: -6
Step-by-step explanation: