Kennedy's house is 600 square feet larger than 4 times Benedict's house. If Kennedy's house is 10000 square feet, how many square feet is Benedict's house? Give the rationale and then the answer.
Let's think step by step. Let the number of square feet in Benedict's house be x. So, we can write the equation 4 * x + 600 = 10000. Subtracting 600 from both sides we get 4 * x = 9400. Dividing both sides by 4 we get x = 2350 square feet.. The answer is: 2350.

Nine hundred tickets were sold to a concert. Three-fourths of those who bought the ticket came before the start of the concert. Five-ninths of the remaining came few minutes after the first song. Eighty people arrived during the middle part of the concert while the rest did not go. How many of those who bought the tickets did not go? Give the rationale and then the answer.
Let's think step by step. 900 x 3 / 4 = 675 people came before the start of the concert. 900 - 675 = 225 people did not come before the start of the concert. 225 x 5 / 9 = 125 people came few minutes after the first song. So, 125 + 80 = 205 people came to the concert that was not able to be at the start of the concert. Therefore, 225 - 205 = 20 people did not go to the concert.. The answer is: 20.

Margaux owns a money lending company. Her friend pays her $5 per day, her brother $8 per day, and her cousin $4 per day. How much money will she collect after 7 days? Give the rationale and then the answer.
Let's think step by step. Her friend will pay $5 x 7 = $35 after 7 days. Her brother will pay $8 x 7 = $56 after 7 days. Her cousin will pay $4 x 7 = $28 after 7 days. Therefore, she will be able to collect $35 + $56 + $28 = $119 after 7 days.. The answer is: 119.