Solve the problem.One maid can clean the house in 7 hours. Another maid can do the job in 5 hours. How long will it take them to do the job working together?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Answer: B
Mathematics
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Find the product, if possible.
A. 
B. 
C. 
D. Not defined
Mathematics
Solve the absolute value equation.
= |2x + 5|
A. x = - 
, 
B. x = 
, 
C. x = - 
, - 
D. no solution
Mathematics
Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.7 + 9 + 11 + 13 + . . . + 23
A. 
B. 
C. 
D. 
Mathematics
Find the perimeter.
A. 53 ft B. 54 ft C. 43 ft D. 121 ft
Mathematics