Evaluate the sum.

A. 5
B. 9
C. 7
D. 14


Answer: C

Mathematics

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Solve the problem.The annual wheat production of a particular region can be modeled by the polynomial  where r is the number of years since this data was first recorded. The wheat acreage harvested annually is modeled by  Find a polynomial that represents the annual yield per acre of wheat harvested.

A. 5r2 + 2+ 5 
B. r2 + 5 r + 2
C. 5r2 - 2- 5
D. 5r2 + 2+  

Mathematics

Complete.0.67 L =  mL

A. 670 mL B. 0.067 mL C. 0.00067 mL D. 67 mL

Mathematics

Solve the problem.The linear equation y = 229x + 6320 provides an approximation of the annual cost (in dollars) to rent an apartment at the Leisure Village Retirement Community, where x = 1 represents 2011, x = 2 represents 2012, and so on. Write an equation that yields the same y-values when the exact year number is entered.

A. y = 229(x - 2011) + 6320 B. y = 229(x - 2010) + 6320 C. y = 229(2011 - x) + 6320 D. y = 229(2010 - x) + 6320

Mathematics

Perform the indicated operations.3 ? (3 + 4)2 - 2 ? (5 - 3)2

A. 580 B. 139 C. 161 D. 425

Mathematics