Answer: 6.72
Explanation:
Natalie is rounding some numbers to the nearest tenth. The numbers given include:
4.07
Rounding this to the nearest tenth equals 4.1
5.64
Rounding this to the nearest tenth equals 5.6
6.72
Rounding this to the nearest tenth equals 6.7
7.78
Rounding this to the nearest tenth equals 7.8
Therefore, the correct option is 6.72