Solve the system by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets.
+ 
= 0 x - y = -8
A. {(-5, 5)}
B. {(-4, 4)}
C. {
x - y = -8 }
D. ?
Answer: B
Mathematics
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Write the decimal as a fraction. Do not write in lowest terms.6.67
A. 
B. 
C. 
D. 
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Simplify.( 
- 4)2
A. 9 - 4
B. 21 + 8
C. 21
D. 21 - 8
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Provide an appropriate response.In a group of 42 students, 22 take history, 17 take biology and 8 take both history and biology. How many students take biology, but not history?
A. 17 B. 22 C. 5 D. 9
Mathematics
Solve.The total cost in dollars for a certain company to produce x empty jars to be used by a jelly producer is given by the polynomial equation 
Find the cost of producing 100,000 jars.
A. $31.40 B. $100,031 C. $71,000 D. $40,000
Mathematics