To find how much Ms. Tanaka will earn for selling 12 televisions, we can plug \( t = 12 \) into the equation \( 2,500 + 100t \).
Calculating it step by step:
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Substitute \( t = 12 \) into the equation: \[ 2,500 + 100(12) \]
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Calculate \( 100(12) \): \[ 100 \times 12 = 1,200 \]
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Now add this to the base salary: \[ 2,500 + 1,200 = 3,700 \]
Therefore, Ms. Tanaka will earn $3,700 for selling 12 televisions this month.
The correct response is: $3,700