Mark spent 220 dollars to fix his car. It needed two parts that cost 20 dollars each, and labor cost .5 dollars a minute. How many hours did the mechanic work? Give the rationale and then the answer.
Let's think step by step. Labor cost is .5 * 60 = 30 dollars per hour. The cost for parts is 20 * 2 = $40. The total cost for labor is 220 - 40 = $180. He spent 180 / 30 = 6 hours on labor.. The answer is: 6.

Marj has two $20 bills, three $5 bills, and $4.50 in loose coins in her wallet. If she buys a cake that costs $17.50, how much money will be left in her wallet? Give the rationale and then the answer.
Let's think step by step. Two $20 bills amount to $20 x 2 = $40. Three $5 bills amount to $5 x 3 = $15. So, Marj has $40 + $15 + $4.50 = $59.50 in her wallet. If she buys a cake, she will be left with $59.50 - $17.50 = $42.. The answer is: 42.

Taegan goes to a carnival where she wins tickets from each of the 5 carnival games and also finds 5 tickets on the floor. Each ticket is worth $3. In total, she has tickets that total a value of $30. If Taegan won an equal number of tickets from each of the games, how many tickets did she win from each game? Give the rationale and then the answer.
Let's think step by step. If tickets are valued at $3 then in total, Taegan has won $30 in total tickets / $3 per ticket = 10 tickets. Some of these tickets were found so only 10 total tickets – 5 found tickets = 5 tickets were won from carnival games. She therefore won 5 tickets / 5 carnival games = 1 ticket from each game.. The answer is: 1.