Posted by **Taylor** on Thursday, November 14, 2013 at 9:37pm.

the annual household cost of telephone service in the US increased at a relatively constant rate of $27.80 per year from 1981 to 2001. IN 2001 the annual household cost of telephone service was $914.

a:What was the annual household cost of telephone service in 1981?

B: Write an equation that gives the annual household cost of telephone service as a function of the number of year since 1981.

C: find the household cost of telephone service in 2000

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