Simplify the expression. Write the result using positive exponents only.(x-3y5)-2
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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The graph below shows the approximate annual percentage growth rate in world population for the years 1960 through 2010. Data is estimated by the UN Census Bureau.Annual Growth Rate (Percentage) 
Use the graph to answer the question.In which year(s) during the period 1960-2010 is world population growing at the fastest rate?
A. 1963-1964 B. 1984 C. 1970 D. 2010
Mathematics
Find the related angle for the given angle.510°
A. 45° B. 60° C. 30° D. 90°
Mathematics
Use properties of real numbers to calculate the expression mentally.77 + 99
A. 175 B. 167 C. 176 D. 177
Mathematics
Find the area.
A. 144.5 m2 B. 68 m2 C. 34 m2 D. 289 m2
Mathematics