If ?XWZ ? ?ZYX and ?XWZ + ?WZY = 180°, then WXYZ is a _______________.
Fill in the blank(s) with the appropriate word(s).
parallelogram
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Divide.
A. 229 B. 22.9 C. 21.9 D. 219
Factor completely.15x2 + 19xy + 6y2
A. (15x + y)(x + 6y) B. (15x + 2y)(x + 3y) C. (3x - 2y)(5x - 3y) D. (3x + 2y)(5x + 3y)
Solve the problem.At speeds greater than 38 miles per hour, the gas mileage of a certain car can be modeled by the equation
where x is the speed of the car in miles per hour and y is the gas mileage in miles per gallon. Based on this model, at what speed will the car average 15 miles per gallon? Round to the nearest whole number.
A. 98 mph B. 73 mph C. 48 mph D. 149 mph
Find the amount of refund to the insured using this short-term rate schedule. 
Annual premium: $2637Months in force: 11
A. $1714.05 B. $527.40 C. $131.85 D. $922.95