Translate to an algebraic expression.8 decreased by b
A. 8b
B. 8 - b
C. 8 + b
D. b ÷ 8
Answer: B
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Use your calculator to perform each calculation and observe the answers. Use inductive reasoning to determine which statement is true. 
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A. Dividing a negative number by a negative number can give either a positive or negative result. B. Dividing a negative number by a negative number gives a positive result. C. Dividing a negative number by a negative number gives an error message on a calculator. D. Dividing a negative number by a negative number gives a negative result.
Solve the problem.Not all murder cases are solved. The percentages of murder cases solved in various years are listed in the table below. 
Let f(t) represent the percent of murder cases solved at t years since 1999. A reasonable model is 
Find the approximate vertex of f. What does it mean in terms of the situation?
A. (13.28, 64.47); 64.47% of cases were solved in 2012, which is the lowest percent for any year. B. (14, 64); 64% of cases were solved in 2013, which is the lowest percent for any year. C. (14.78, 63.75); 63.75% of cases were solved in 2014, which is the lowest percent for any year. D. (12.78, 63.12); 63.12% of cases were solved in 2012, which is the lowest percent for any year.
Solve the problem.Suppose a life insurance policy costs $16 for the first unit of coverage and then $4 for each additional unit of coverage. Let C(x) be the cost for insurance of x units of coverage. What will 10 units of coverage cost?
A. $56 B. $52 C. $40 D. $24
Find the perimeter.
A. 378 inches B. 356 inches C. 297 inches D. 328 inches