Solve the problem.For a selected group of news markets, the number n of daily newspapers was modeled by the system n = 9.1t + 191.3 for morning newspapers n = -15.7t + 692.4 for evening newspapers,where t is the number of years since 1980. Find an expression for the difference between the number of morning newspapers and the number of evening newspapers in this group of markets t years after 1980.
A. -182.2t - 676.7
B. -13.2t - 883.7
C. 24.8t - 501.1
D. -6.6t + 883.7
Answer: C
Mathematics
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