document.write( "Question 1169361: An electrical company used the following method for computing consumers bill or monthly service charges dollar 5 for each consumer and in addition the company charges 0.095 per killo watt hour.if c is equals to monthly charges and k is equal to number of killo watt used. \n" );
document.write( "(a) Determine function c which express monthly charges as a function of the number of killo watt per hour \n" );
document.write( "(b) use function to determine monthly charges when consumer use 850 killo watt per hour \n" );
document.write( "(c) find restricted domain and range \n" );
document.write( "(d) compute bills for a customer who uses between 200 and 1500 killo watt per hour \n" );
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