posted by Elizabeth .
A chauffer must decide between driving his clients in the rolls royce or the mercedes benz. the rolls royce costs 1.75 per mile to operate and the mercedes benz costs 2.00 per mile. The chauffer can charge 4.00 per mile for the rolls royce and 6.50 per mile for mercedes benz. The chauffer wants his expenses to be no more than 200 for the day and his total charges to be at least 600 for the day. the rolls royce must travel at most 90 miles and the mercedes benz must travel at least 30 miles