Evaluate.8? 7 - 2(2)2 ÷ (-2)
A. - 24
B. 64
C. 60
D. -108
Answer: C
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Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°
A. - 
B. - 
C. 
D. - 
Determine where the function is increasing and where it is decreasing.f(x) = x2 + 10x
A. increasing on (5, ?) decreasing on (-?, 5) B. increasing on (-?, 5) decreasing on (5, ?) C. increasing on (-5, ?) decreasing on (-?, -5) D. increasing on (-?, -5) decreasing on (-5, ?)
Provide an appropriate response.In certain situations, a matrix game can be reduced to a smaller game by deleting certain rows and/or columns from the payoff matrix. The optimal strategy for the reduced game will then determine the optimal strategy for the original game. In what circumstances may a row or column be deleted from the payoff matrix?
A. A row may be deleted if it is recessive to some other row and a column may be deleted if it is dominant to some other column. B. A row may be deleted if it is dominant to some other row and a column may be deleted if it is recessive to some other column. C. A row may be deleted if it is dominant to some other row and a column may be deleted if it is dominant to some other column. D. A row may be deleted if it is recessive to some other row and a column may be deleted if it is recessive to some other column.
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.$2400The family saved 
of their total income each month. How much savings did they have at the end of June?
A. $1170 B. $828 C. $1044 D. $1093.50