Test the equation for symmetry with respect to the given axis, line, or pole.r = 3 sin(3?); the line ? = 
A. May or may not be symmetric with respect to the line ? = 
B. Symmetric with respect to the line ? = 
Answer: B
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Solve the problem.At the end of the day, a storekeeper had $1560 in the cash register, counting both the sale of goods and the sales tax of 4%. Find the amount that is the tax.
A. $55 B. $50 C. $65 D. $60
Solve the system of equations. 3x - 4y = -3 6x + 2z = - 
2y - 4z = 4
A. x = - 
, y = 
, z = 
B. x = 3, y = 3, z = 
C. x = - 
, y = 
, z = - 
D. Inconsistent
Solve the variation problem.The distance it takes to stop a car varies directly as the square of the speed of the car. If it takes 112 feet for a car traveling at 40 miles per hour to stop, what distance is required for a speed of 
per hour?
A. 175 feet B. 175.34 feet C. 150 feet D. 187.3 feet
Graph the solution set of the inequality and write it in interval notation.-9x ? 27
A. (-?, -3]
B. [3, ?)
C. (-?, 3]
D. [-3, ?)