Solve the problem.An electrician is working on a project for which she will need to run straight conduit pipe for lengths of 40 feet, 70 feet, and 100 feet. She wants to precut pieces of pipe to one standard length so that she can connect the pieces to obtain the three lengths she needs. What is the longest length that she can make the precut pieces?
A. 5 ft
B. 8 ft
C. 12 ft
D. 10 ft
Answer: D
Mathematics
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