Answer:
B
Step-by-step explanation:
A natural number is a positive integer, example, 1,2,5,299 etc.
A rational number is a number that can be expressed as a fraction of integers, such as 245/127, 1/2, 5/1,8/1,...
Since a natural number can be expressed as a fraction of integers, so
a natural number IS a rational number.
Plus a negative value becomes subtraction:
-12 + -23 = -12 -23 = -35
Answer:
either 21 or 39 ion know this is confusing
Step-by-step explanation: