Emma had 20 minutes to do a three-problem quiz. She spent 9
7
10
minutes on question A and 6
2
5
minutes on question B. How much time did she have left for question C?Emma had 20 minutes to do a three-problem quiz. She spent 9
/7
10
minutes on question A and 6
2/

5
minutes on question B. How much time did she have left for question C?