Isabela bought twice as many cucumbers as pencils, with both costing $20 each. If she got a 20% discount on the pencils and bought 100 cucumbers, calculate the total amount she spent to buy the items. Give the rationale and then the answer.
Let's think step by step. Isabela bought twice as many cucumbers as pencils, meaning she bought 100 / 2 = 50 pencils. The total cost for purchasing the pencils without the discount is 50 * $20 = $1000. At a 20% discount, Isabela paid 20 / 100 * $1000 = $200 less. The total amount of money she used to buy the pencils is $1000 - $200 = $800. She also bought the cucumbers at a total cost of $20 * 100 = $2000. The total cost for the items is $2000 + $800 = $2800.. The answer is: 2800.

Kevin repairs phones at his job. At the beginning of the day, Kevin has 15 phones that need to be repaired. By the afternoon, Kevin has successfully repaired 3 of the 15 phones and a client has dropped off 6 more phones that need fixing. If a coworker of Kevin's offers to help him and fix half of the damaged phones, how many phones will each person need to repair? Give the rationale and then the answer.
Let's think step by step. Kevin begins the day with 15 phones and repairs 3 by the afternoon, so Kevin still has to repair 15 - 3 = 12 phones. A client drops off 6 additional phones that require fixing, increasing the total to 12 + 6 = 18 phones. If Kevin's coworker helps Kevin fix half of the phones, then each person needs to fix 18 / 2 = 9 phones.. The answer is: 9.

Lexie is 6 years older than her brother and her sister is twice her age. If Lexie is 8, what is the age difference between her brother and her sister? Give the rationale and then the answer.
Let's think step by step. Lexie's brother is 8 - 6 = 2 years old. Her sister is 8 x 2 = 16 years old. The age difference between her brother and sister is 16 - 2 = 14 years.. The answer is: 14.