To write an improper fraction a mixed number you start by seeing how many times the denominator (bottom number) goes in to the numerator (top number). Since the denominator is 9 and the numerator is 29, 9 goes into 29 3 times. The left over numbers become the fraction of which is in simplest form.
<em>3 x 9 = 27</em>
<em>29 - 27 = 2</em>
<u>Mixed number: 3 2/9</u>
1/2 of 10 is 5 so the answer you are looking for is 5 cookies
0.13 <== the decimal is in the tenth place.
We could also say it is equal to
13/100
Or,
"C" 13%
I hope this helps!
~kaikers