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Magazine Problem 64
Describe how to find percent decrease and give an example.
Problem 68
My rent increased from \(20 \%\) to \(30 \%\) of my income, so the percent increase is \(10 \%\).
Problem 71
In January, each of 60 people purchased a \(\$ 500\) washing machine. In February, 10\% fewer customers purchased the same washing machine that had increased in price by \(20 \%\). What was the change in sales from January to February?
Problem 72
When you buy something, it actually costs more than you may think - at least in terms of how much money you must earn to buy it. For example, if you pay \(28 \%\) of your income in taxes, how much money would you have to earn to buy a used car for \(\$ 7200\) ?
