N + 0.5N = 133.5
That is, 1.5 N = 133.5
so N = 133.5/1.5 and therefore, N = 89.
3 years and 6 and a half months
The number 2.
It's zero.
21/2 is itself a mixed number
2 is the only prime even number, as prime numbers go into itself and 1. Even numbers tend to have, at the very least, 1 times itself and 2 times one-half of itself.
It is 3. 100% of any number is the number itself. (ie. 50% of any number is the half of the original number.)
The only such number is zero.
2 Yes but 2 divided by half of 2 (1) = 2 which isn't the lowest whole number. I don't think this question has an answer.
All you have to do is divide by two
17
238
10 and a half, being between the whole numbers 10 and 11, can't be a whole number itself.