Answer:
17
Explanation:
Assume you meant "She has one remaining"
If this is not what you meant, this is how you would do the problem
35 - the amount she had left = given to friend
given to friends / 2 = 0
If she has one left this would be the following
35-1= 34
34/2=17
We divide by 2 because she gave 2 for each friend
If you still have trouble, comment how many she had left!