The following table shows the earnings for the Juarez family last year. Use this information to answer the question.MonthEarningsMonthEarningsJan.$1400July$1300Feb.$1150Aug.$2450Mar.$2950Sept.$2500Apr.$2300Oct.$2000May$1650Nov.$2350June$2700Dec.$2400What was the family's total income from January thru June?
A. $11,000
B. $9,200
C. $12,150
D. $13,000
Answer: C
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A. 
B. - 
C. - 
D. - 
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A. 
B. 
C. 
D. 
Find the value of df-1/dx at x = f(a).f(x) = 2x + 8, a = -4
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B. 
C. 
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west. For part of the trip, they averaged 
but as the congestion got bad, they had to slow to 
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