$30.55
-----------------------------------------
4.70
x 6.5
_____
2350
28200
_______
30.550
The answer is D because when multiplied by 1/10 you move the decimal place of 7 one space to the left so 7 now equals .7 and when multiplied by 1/100 23 is moved two spaces to the left to make .23
Any

in this set will be real numbers that are both less than

and greater than

. But that's not possible, so this set is empty.
sorry misread the question