Answer:
Step-by-step explanation:
A phone company offers two monthly plans. Plan A costs $10 plus an additional $0.15 for each minute of calls. Plan B costs $19 plus and additional $0.10 for each minute of calls.
For what amount of calling do the two plants cost the same?
fyi b's answer has imaginary numbers in it...
Imaginary: 1 +
Imaginary: 1 -
= ... the negative root will produce imaginary solutions
I think Its D
Not sure tho
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