AIR MATH

Math Question

An electric company charges a certain rate per kilowatt-hour \( (\mathrm{kWh}) \) of electricity used and an administrative fee of \( \$ 3.50 \). The company charged Zhao \( \$ 63.25 \) for using \( 800 \mathrm{kWh} \) of electricity. Zhao uses the equation, \( 63.25=800 r+3.50 \) to represent the situation. What does the variable \( r \) represent in the equation? Choose 1 answer: (A) The number of kilowatt-hours Zhao used (B) The charge per kilowatt-hour (c) The amount of the total charge that depends on the number of kilowatt-hours used

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