Solve the problem.A company is introducing a new soft drink and is planning to have 48 advertisements distributed among TV ads, radio ads, and newspaper ads. If the cost of TV ads is 
each, the cost of radio ads is 
each, and the cost of newspaper ads is 
each, how can the ads be distributed among the three types if the company has 
/> to spend for advertising? (Let x denote the number of TV ads, y the number of radio ads, and z the number of newspaper ads. Let z be the parameter.)
A. x = 39 - z, y = 9, 0 ? z ? 39
B. x = z - 39, y = 9, 0 ? z ? 39
C. x = 9, y = 39 - z, 0 ? z ? 39
D. x = 9, y = z - 39, 0 ? z ? 39
Answer: C
Mathematics
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