document.write( "Question 1114839: A company that conducts bus tours found that when the price was $9.00 per person,the average number of customers was 1000 per week. When the company reduced the price to $7.00 per person, the average number of customers increased to 1500 per week. \n" );
document.write( "(a)Write a linear equation that gives the unit price p, in terms of the average number of customers x per week. (Write your answer in the form p = mx + b.) \n" );
document.write( "b). What unit price should be charged to obtain the greatest weekly revenue? \n" );
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