exam Maths Puzzle Numerical Ability

tickets for homecoming dance cost $20 for a single ticket or $35 for a couple. ticket sales totaled $2280, and 128 people attende. how many tickets of each type were sold?

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exam Other Question

roise's palm pirates, a manufacturer of electronic organizers, estimates that when x hundred palm pirates are made, the averages cost per unit is given by C(x)=0.4x^2-3.68x+9.524, Hello, I need help solving the following problem:

(25x^2y^3-8xy^2+15x3y)/(10x^2y^3)

Thank you very much.