Mathematics, 05.07.2019 09:30 Bladen6579

The cost of calling raymond's friend in singapore is $3.00 plus $0.40 per minute. the cost as a function of time is shown in the graph. write an equation that represents the cost as a function of the number of minutes. identify the slope and y-intercept and describe their meanings. find the cost of a 20-minute call.

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