Solve the problem.The table below shows the results of a consumer survey of annual incomes in 100 households. 
What is the probability that a household has an annual income of $25,000 or more?
A. 0.71
B. 0.43
C. 0.57
D. 0.28
Answer: A
Mathematics
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Determine whether the following is always true or not always true. Given reasons for your answers.c(u ? v) = cu ? cv (any number c)
What will be an ideal response?
Mathematics
Solve the problem.Marti and Manuel are building a room onto their house that will have an area of 225 square meters. How many square yards of carpet will they need to buy to cover the entire addition?
A. 180 yd2 B. 202.5 yd2 C. 281.25 yd2 D. 2500 yd2
Mathematics
Solve.S = 2?rh + 2?r2, for h
A. h = 2?(S - r)
B. h = 
C. h = S - r
D. h = 
- 1
Mathematics
Simplify the expression. Assume that all variables are positive.
? 
A. 35
B. 
C. 12
D. 
Mathematics