Which situation cannot be represented by this equation? 6x−7=29. a. joel earns $7 per hour to mow his aunt’s lawn. if he spends $6$6 on gas, how many hours, x, will he need to mow to have $29 left? b. joel mows his aunt's lawn for $6 per hour. if he spends $7 on gas, how many hours, x, will he need to spend mowing the lawn to have $29 left? c. joel takes 6 hours to mow his aunt’s lawn. if he spends $7 on gas, how much does he get paid per hour, x, to mow the lawn and still have $29 left?