Attachment for 8th grade math
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This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?