Solve.Mark and Rachel both work for Smith Landscaping Company. Mark can finish a planting job in 2 hours, while it takes Rachel 3 hours to finish the same job. If Mark and Rachel will work together on the job, and the cost of labor is $35 per hour, what should the labor estimate be? (Round to the nearest cent, if necessary.)
A. $29.17
B. $84.00
C. $87.50
D. $42.00
Answer: D
Mathematics
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Determine which property of absolute value justifies the statement.
? 0
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Use back-substitution to solve the system of linear equations below.
A. 
B. 
C. 
D. 
E. 
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