A taxi charges $3 to start up plus $2 per mile . - y= 2x + 3, a cell phone plan includes a $20 base fee plus $5 per GB. - y= 5x + 20, a cafe charges $2 per coffee cup plus $1 service fee. - y= 2x + 1, A movie charges a $5 base fee for entering plus $10 per ticket  - y= 10x + 5,

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