Simplify the algebraic expression.-4x - 2y - 2x - 8y
A. -16xy
B. -6x - 10y
C. -4x - 2x - 2y - 8y
D. -10x - 6y
Answer: B
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Evaluate the integral.
A. - 
B. 
C. 9
D. 
- 2
Match the equation with the surface it defines.- 
+ 
+ 
= 1 
A. Figure 2 B. Figure 4 C. Figure 3 D. Figure 1
Determine if the following system is consistent, inconsistent, or dependent. If the system is consistent, find the solution of the system. 
A. Dependent B. Consistent; (4, 11) C. Consistent; (4, 10) D. Inconsistent
Solve the problem.Suppose that the number of inhabitants of Country A is given by 
million, and the number of inhabitants of Country B is given by 
million, where x is the number of years since 2010. When the number of inhabitants of Country A equals the number of inhabitants of Country B, how many people inhabit each country?
A. 849,072,000 people B. 848,346,000 people C. 849,798,000 people D. 847,620,000 people