Solve the problem.Sue can sew a precut dress in 3 hours. Helen can sew the same dress in 2 hours. If they work together, how long will it take them to complete sewing that dress? Give your answer rounded to one decimal place, if necessary.
A. 2.5 hr
B. 1.8 hr
C. 1.2 hr
D. 5 hr
Answer: C
Mathematics
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Solve the problem.
=
A. 2
B. 
C. 26.04
D. 25
E. none of these
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Provide an appropriate response.Subtract the complex numbers: (3 + 5i) - (1 - 7i)
A. 2 + 12i B. 8 - 6i C. 4 - 2i D. 2 - 2i
Mathematics
Evaluate.10(x - y - z) and 10x - 10y - 10z when 
and 
A. 113, 50 B. 50, 50 C. 113, 113 D. 77, 86
Mathematics
Graph the equation.y = x + 3
A. 
B. 
C. 
D. 
Mathematics