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 less than $25,000?
A. 0.58
B. 0.22
C. 0.69
D. 0.31
Answer: D
Mathematics
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A. 252 ft2 B. 220.5 ft2 C. 798 ft2 D. 399 ft2
Mathematics
The following question(s) refer to a fractal defined by the recursive procedure :
How many line segments appear in step 2 of the construction?
A. 25 B. 5 C. 52 D. 5 × 2 E. none of these
Mathematics
Find the value of the variable that satisfies the equation.43 = 7x + 1
A. x = 5 B. x = 35 C. x = 6 D. x = 39
Mathematics
An equation of the terminal side of an angle ? in standard position is given along with a restriction on x. Find the indicated trigonometric function value of ?. Do not use a calculator.-8x - 5y = 0, x ? 0; Find cos ?.
A. - 
B. - 
C. 
D. 
Mathematics