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Your music collection grows by 20 songs every week. If you currently have 1,000 songs, how many weeks will it take to amass 3,500 songs?

Let \(f(x)\) be a linear function. Given \(f(6)-f(2)=12\) find the value of \(f(12)-f(2)\).

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Five identical large hoses can fill a swimming pool in 2 hours (working together).

Three identical small hoses can fill the swimming pool in 5 hours (working together).

Three identical small hoses can fill the swimming pool in 5 hours (working together).

Using two large hoses and one small hose, how much time will it take to fill the swimming pool? Give your answer in minutes.

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The battery of a cell phone is enough for 9 hours when the phone is off and 1.5 hours when the phone is on.

If the battery of my fully charged phone was discharged in 8 hours, then how long did I have it on?

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The age of my grandson in days is numerically equal to the age of my son in weeks. The age of my grandson in months is numerically equal to my age in years. The sum of ages of my grandson, my son, and me is 120 years. What is my age in years?

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