Evaluate the expression using the given values.
?x = 5, y = 7
A. 21
B. 49
C. 9
D. 7
Answer: A
Mathematics
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Solve the problem.The population of a small town can be modeled by P = -32t + 13,500, where t is the number of years since 2010. Interpret the P-intercept of the graph of this function.
A. The population of the town was 32,000 in 2010. B. The population of the town was 13,500 in 2010. C. The population of the town is increasing by 32 people per year. D. The population of the town is decreasing by 32 people per year.
Mathematics
Find the sum.[-17 + (-17)] + [(-21) + (-9)]
A. -64 B. -30 C. 4 D. 12
Mathematics
Simplify the expression. Write the result using positive exponents only.
A. -x2
B. 
C. - 
D. x2
Mathematics
Perform the indicated operation and simplify. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics