单项选择题
Percentage of students who reported spending time on homework and watching television
A. 5% B. 15% C. 25% D. 40% E. 55%
A. 0<A B. 0<A ≤π C. A=π D. A>π E. A ≥π
A. 45 B. 50 C. 58 D. 59 E. 60