Evaluate the algebraic expression for the given values of the variables.
for x = 7, y = 8, and z = 3
A. 14
B. 336
C. 112
D. 333
Answer: C
Mathematics
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Write the number as a product of primes.77
A. 7 ? 7? 11 B. 7 ? 13 C. 7 ? 11 D. 2 ? 7 ? 13
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Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics
Solve the problem.The median household income of single mothers is shown in the bar graph, where the year 1995 corresponds to x = 5 and the year 2000 corresponds to x = 10. Use the information from the graph to write an equation to approximate the median income for 2005. Round to the nearest dollar.
A. $30,704 B. $36,764 C. $39,794 D. $38,279
Mathematics
Divide and simplify.
÷ 
A. 
B. 
C. 1
D. 
Mathematics