Solve using the elimination method. Use a graphing calculator to check your answer. 7x + 9y = -15-2x - 4y = 0
A. (-6, 4)
B. (-6, 3)
C. (-7, 4)
D. No solution
Answer: B
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Add and write the result in lowest terms.- 
+ 
A. 
B. 
C. 0
D. - 
Identify as an equation or an expression.
- 
+ 9
A. Equation B. Expression
Solve the problem.The city council of a small town needs to determine if the town's residents will support the building of a new library. The council decides to conduct a survey of a sample of the town's residents. Which one of the following procedures would be most appropriate for obtaining a sample of the town's residents?
A. Survey a random sample of persons within each neighborhood of the town. B. Survey 400 individuals who are randomly selected from a list of all people living in the state in which the town is located. C. Survey every 11th person who enters the old library on a given day. D. Survey a random sample of librarians who live in the town.
Change 89 m2 to cm 2 .
A. 89,000 cm 2 B. 8,900,000 cm 2 C. 89,000,000 cm 2 D. 890,000 cm2 E. 8,900 cm 2