Question 1169833
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He earns more per hour parking cars than working at Haul-Mart, so his earnings are greatest when he works the maximum number of hours parking cars.<br>
Since he wants to spend at most 10 hours parking cars, he should park cars for 10 hours and work at Haul-Mart for the other 6 hours.<br>
His earnings are then 10($8)+6($7) = $80+$42 = $122.<br>