Solve the problem.A painter can finish painting a house in 8 hours. Her assistant takes 10 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 
hours
B. 7 hours
C. 9 hours
D. 4
hours
Answer: D
Mathematics
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Use ? or ? in the blank to make a true statement.{x | x is a counting number larger than 5} {7, 8, 9, ...}
A. ? B. ?
Mathematics
Solve the problem.The costs of one-way flights between several U.S. cities are listed below:
Using the Nearest Neighbor algorithm, estimate the minimum cost for a trip that starts in Des Moines, travels to all the other cities once, and then returns to Des Moines.
A. $720 B. $1072 C. $761 D. $816
Mathematics
Determine the unknown fractional part of the circle graph.
A. 
B. 
C. 
D. 
E. 
Mathematics
Multiply.
A. 4412 B. 4612 C. 4522 D. 4512
Mathematics