Ken, Dave, and Jerry played shuffleboard against one another while together vacationing in Florida. Ken won 5 more games than Dave, and Dave won 3 more games than Jerry. If Jerry won 7 games, what was the total number of games they played? Give the rationale and then the answer.
Let's think step by step. If Dave won 3 more games than Jerry, and Jerry won 7 games, then Dave won 10 games. If Ken won 5 more games than Dave, and Dave won 10 games, then Ken won 10 + 5 = 15 games. In total, the three friends played 7 + 10 + 15 = 32 games.. The answer is: 32.

Alex is saving up for a new car. He already has $14,500 saved up and the car costs $14,600. He decides that to make the last of the money he will deliver groceries for people in the neighborhood. He charges $1.5 per trip and then 5% of the price of the groceries. If he makes 40 trips and has saved up enough, how many dollars' worth of groceries did he deliver? Give the rationale and then the answer.
Let's think step by step. He needs to save up $100 because 14,600 - 14,500 = 100. He earned $60 off trips because 40 x 1.5 = 60. He earned $40 off groceries because 100 - 60 = 40. He delivered $800 in groceries because 40 / .05 = 800.. The answer is: 800.

James goes out to eat. He orders a steak and egg meal for $16. He is with his friend, who orders chicken fried steak for $14. His friend pays for half the bill and James pays the tip along with his half of the bill. They tip 20%. How much did James pay? Give the rationale and then the answer.
Let's think step by step. The meals cost 16 + 14 = $30. So each paid 30 / 2 = $15. James left a tip of 30 * .2 = $6. So James paid 15 + 6 = $21.. The answer is: 21.