Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Using the critical-path algorithm to schedule this project with two processors, the project finishing time is
A. 17 hours.
B. 20 hours.
C. 19 hours.
D. 18 hours.
E. none of these
Answer: D
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Perform the indicated operations in the proper order.
A. 1
B. 4
C. - 1
D. 
Convert the mass or weight as indicated. Round the answer to two decimal places if necessary.41 kilograms to pounds
A. 43.46 lb B. 90.2 lb C. 18.45 lb D. 104.14 lb
Use a calculator to evaluate.523
A. 2704 B. 156 C. 55 D. 140,608
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525