1 Answer

Gibolt · Answer 1 · 2021-06-15T20:07:15+0000

Answer:

250 minutes with the flat rate of $29.

$x\leq 250$

x would be the number of minutes called.

x-250

Tracy would be charged by $0.35 per minute.

$f(x)=29\\ 0\leq x\leq 250$

$f(x)=0.35(x-250)+29,\\250\leq x\leq ∞$

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