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Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.

The formula for the area of a regular polygon is a=1/2ap . what is the equation solved for a?