At Clark's Food Store, apples cost 40 dollars for a dozen, and pears cost 50 dollars for a dozen. If Hank bought 14 dozen of each kind of fruit, how many dollars did he spend? Give the rationale and then the answer.
Let's think step by step. If Hank bought 14 dozen apples, he spent 14 * $40 = $560. Hank also spent $50 * 14 = $700 for 14 dozen pears. The total cost of the fruits that hank bought is $700 + $560 = $1260.. The answer is: 1260.

John puts $25 in his piggy bank every month for 2 years to save up for a vacation. He had to spend $400 from his piggy bank savings last week to repair his car. How many dollars are left in his piggy bank? Give the rationale and then the answer.
Let's think step by step. He saved money for 2 years, which is equal to 12 x 2 = 24 months. The amount of money he saved is $25 * 24 = $600. But he spent some money so there is $600 - $400 = 200 left.. The answer is: 200.

A bulk warehouse is offering 48 cans of sparkling water for $12.00 a case. The local grocery store is offering the same sparkling water for $6.00 and it only has 12 cans. How much more expensive, per can, in cents, is this deal at the grocery store? Give the rationale and then the answer.
Let's think step by step. The bulk warehouse has 48 cans for $12.00 so that's 12 / 48 = $0.25 a can. The local grocery store has 12 cans for $6.00 so that's 6 / 12 = $0.50 a can. The grocery store offer is $0.50 a can and the warehouse is $0.25 a can so the grocery store is .50 - .25 = $0.25 more expensive per can.. The answer is: 25.