Seventy-five percent of the dental students finished their clinical tasks. The class had 16 students. How many finished their clinical tasks?

A mouth-opening width of less than ___ cm indicates a potentially difficult airway.

A) 3 B) 4 C) 5 D) 6

Which of the following is the smallest (or "lowest") common denominator of 2, 5, and 7?

A. 10 B. 35 C. 56 D. 70