Tickets for a play at the community theater cost $8 for children and $20 for adults. A total of 300 tickets have been sold for $3,900. How many children's tickets have been sold?

Lassify the function as linear or quadratic and identify the quadratic, linear, and constant terms. f(x) = (3x + 2)(−6x − 3) linear function; linear term: −21x; constant term: −6 linear function; linear term: −18x2; constant term: −6 quadratic function; quadratic term: 6x2; linear term: 24x; constant term: −6 quadratic function; quadratic term: −18x2; linear term: −21x; constant term: −6

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Solve: 3x+y=6 4x-2y=18 show all work !