Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation 
where x is the time in months, with x = 1 corresponding to January, 
and 
Determine the month with the greatest total sales and give the sales in that month.
A. September; $3200
B. December; $8600
C. June; $5900
D. March; $8600
Answer: D
Mathematics
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Use a calculator to give the value to the nearest degree.? = sin-1(-0.4848)
A. -29° B. 151° C. -28° D. -31°
Mathematics
Simplify.
A. 
B. 
C. 4x - 8y2
D. 
Mathematics
Solve the equation by making an appropriate substitution.x - 8
+ 7 = 0
A. {1, 49}
B. {-1, 1, -7, 7}
C. {-1, 1, -
, 
}
D. {1, 7}
Mathematics
Without graphing, tell whether the graphs of the pair of equations are parallel, perpendicular, or neither. 3x - 8y = -332x + 12y = -3
A. Parallel B. Perpendicular C. Neither
Mathematics