Solve.A painter can finish painting a house in 7 hours. Her assistant takes 9 hours to finish the same job. How long would it take for them to complete the job if they were working together?
A. 
hr
B. 6 hr
C. 8 hr
D. 3
hr
Answer: D
Mathematics
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Use the graph to estimate the specified limit.Find 
f(x)
A. 6 B. 0 C. -1 D. does not exist
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Solve the problem. Round your result to an appropriate number of significant digits.A rectangular classroom is 10.0 ft wide, 19.0 ft long, and 8.0 feet high. What is the length of the longest diagonal from one corner to another corner of the room?
A. 29 ft B. 37 ft C. 21 ft D. 23 ft
Mathematics
Solve the problem.A glide reflection is defined by the given slide arrow and the line of reflection m. Find the image of the given figure under this glide reflection.
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated. Write the answer in simplest form.
+ 
+ 
A. 
B. 
C. 
D. 
Mathematics