It is 30 because u r dividing by 2 every time
Yes, it will always be a rational number. I'll expound on this by defining what a rational number is. It is any number that can be expressed as a fraction. Otherwise, it is called an irrational number with a non-terminating decimal expansion. So, although 1/3 has a non-terminating decimal expansion because it is equal to 0.33333333...., it is still a rational number because it can be expressed into a fraction.
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3/4 of 10 would = $7.5 which would be your answer.
5/8 * 2 =
10/8 =
5/4
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your answer is 5/4