Solve the problem.Martha can rake the leaves in her yard in 5 hours. Her brother can do the job in 2 hours. How long will it take them to do the job working together?
A. 3
hours
B. 
hours
C. 1
hours
D. 
hours
Answer: C
Mathematics
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Find the perimeter of the figure. 60 meters 
60 meters
A. 1500 meters B. 145 meters C. 170 meters D. 85 meters
Mathematics
Factor.16x2 + 56x + 49
A. (4x - 7)2 B. (4x + 7)(4x - 7) C. (4x + 7)2 D. (16x + 1)(x + 49)
Mathematics
Identify the numerator and denominator of the fraction.
A. Numerator: 7
Denominator: 6
B. Numerator: 
Denominator: 6
C. Numerator: 6
Denominator: 7
D. Numerator: 13
Denominator: 1
Mathematics
Find the radian measure of angle ?, if ? is a central angle in a circle of radius r, and ? cuts off an arc of length s. ? r = 4 inches, s = 20 inches ?
A. 5 B. 6 C. 2 D. 3 E. 1
Mathematics