2. Kervins is $28 in debt because he borrowed money to buy food after school. He plans to pay back his debt at a rate of $7 per
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Answer:
Step-by-step explanation:
Let 'x' be the usage in kWh. When usage is at or under 800 kWh, the cost function C(x) is given by the base charge of $8 added to the rate of $0.05/kWh multiplied by the consumption 'x', in kWh.
Therefore, for 0 ≤ x ≤ 800, the cost function is: