The answer is B. If you would like an explanation just comment.
Answer: Rational Numbers
Step-by-step explanation: A rational number is any number that can be written as a fraction therefore 23 and .45 would be considered rational numbers.
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48S tep-by-step explanation:
If you need to write a number as a decimal, it means that you need to write is a an x divided by a power of 10.
you can use this formula:

now let's multiply both sides by 10:

and simplyfy:
(by dividing the first fraction's elements by 5)

change improper fraction into a mixed number

and 1 over 3 is 0.33333...
so the answer is 1.333333 - we can also write it as 1.(3)
Answer: 20% increase
Step-by-step explanation:
change/ original number
(60 - 50 / 50) x 100 = 20
20%