Answers:
1st question: 20%, 2nd question: 64%, missing number of rolls is 7
Explanation:
Since she rolled the die 25 times, that means she rolled the number 6 seven times.
1st question
2 - 4
3 - 1
(4+1)/25
5/25 = 1/5 = 20%
2nd question
4 - 5
6 - 7
(4+5+7)/25
16/25 = 64%