2. Store C is offering a backpack Karen wants for 30% off their regular price of $45. Store D offers the same backpack at its regular price of $30. At which store should Karen buy her backpack?
To determine at which store Karen should buy her backpack, we'll compare the prices at both stores after taking into account the discounts.
At Store C, Karen can get the backpack for 30% off the regular price of $45.
30% of $45 is (30/100) * $45 = $13.50 off.
Therefore, Karen can buy the backpack at Store C for $45 - $13.50 = $31.50.
At Store D, Karen can buy the backpack at its regular price of $30.
Comparing the prices, Karen should buy her backpack at Store D, where she can get it for $30.