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Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles