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Evaluate or simplify the expression without using a calculator.
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Q72: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7043/.jpg" alt=" A)
Q80: <span class="ql-formula" data-value="9 \left( 10 \log ^
Q105: <span class="ql-formula" data-value="\begin{array} { l } 9
Q119: <span class="ql-formula" data-value="\log _ { 5 }
Q134: At what time was the temperature its
Q136: <span class="ql-formula" data-value="f ( x ) =
Q141: <span class="ql-formula" data-value="2 y = x +
Q170: The profit that the vendor makes
Q176: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7043/.jpg" alt=" A)
Q193: <span class="ql-formula" data-value="f ( x ) =