Geometry
posted by monique n .
a movie theater sells tickets for $9.00 each. Senior citizens receive a discount of $3.00. One evening the theater sold 636 tickets and took in $4974 in revenue. How many tickets were sold to senior citizens? [Hint: subtract the potential answer.]
A. 386
B. 77
C. 250
D. 559
im confused... how do u solve this? please help
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