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The cost of a telephone call is $0.75 + $0.25 times the number of minutes. Write an algebraic expression that models the cost of a telephone call that lasts t minutes.

The algebraic expression that models the cost of a telephone call that lasts t minutes is $0.75 + $0.25t.

To write an algebraic expression that models the cost of a telephone call that lasts t minutes, we can use the given information:

The cost of a telephone call is $0.75 (the base cost) plus $0.25 times the number of minutes (t).

Therefore, the algebraic expression is:

Cost = $0.75 + $0.25t