Leticia made a mistake in her step 2. She did subtraction before multiplication.
<h3 /><h3>How to simplify an expression?</h3>The expression can be simplified as follows;
4.5 ÷ 0.25 + 2.5 - 0.75 × 8
Hence, using Pemdas rule,
4.5 ÷ 0.25 + 2.5 - 0.75 × 8
18 + 2.5 - 0.75 × 8
18 + 2.5 - 6 = 14.5
Therefore, she made mistake in her step 2 because she was suppose to solve the multiplication before subtraction.
learn more on expression here: brainly.com/question/13545210
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