Solve the problem.Amy can clean the house in 7 hours. When she works together with Tom, the job takes 4 hours. How long would it take Tom, working by himself, to clean the house?
A. 9
hours
B. 10
hours
C. 9
hours
D. 3 hours
Answer: C
Mathematics
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Find the sum, if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response. There are 14 boxes with either a striped tie or a solid colored tie. 8 of the boxes contain solid colored ties. What is the probability of selecting at random a box containing a striped tie?
A. 
B. 
C. 
D. 
Mathematics
Explain whether the given equation defines an exponential function. Give the base for each exponential function.y = 1x
A. No, the base is a constant. B. Yes, the base is 1. C. No, the base is 1. D. Yes. the base is x.
Mathematics
Solve the equation. Express radicals in simplest form.
x2 + 
x - 
= 0
A. {-1}
B. ?
C. 
D. 
Mathematics