Solve the radical equation, and check all proposed solutions.
+ 
= 4
A. {0}
B. {-2}
C. {
, -2}
D. {2, -2}
Answer: B
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Solve the following system of equations. Round your answers to two decimal places.
What will be an ideal response?
Write the fraction in lowest terms.- 
A. 
B. - 
C. 
D. - 
Solve.Mike, Joe, and Bill are painting a fence. The painting can be finished if Mike and Joe each work for 4 hours and Bill works for 2 hours; or if Mike and Joe each work for 2 hours and Bill works for 5 hours; or if Mike works for 6 hours, Joe works for 2 hours, and Bill works for 1 hour. How much time does it take for each man working alone to complete the painting?
A. Mike: 12 hr; Joe: 10 hr; Bill: 10 hr B. Mike: 8 hr; Joe: 8 hr; Bill: 16 hr C. Mike: 8 hr; Joe: 16 hr; Bill: 8 hr D. Mike: 16 hr; Joe: 8 hr; Bill: 8 hr
Indicate whether the statement is true or false.27 is to 63 as 45 is to 105.
A. True B. False