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Express the sum using summation notation.
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Water
Water is a transparent, tasteless, odorless, and nearly colorless chemical substance that is essential for the survival of most known forms of life.
Marginal Cost
The expense associated with manufacturing an additional unit of a product or service.
Price Reduction
A decrease in the cost of goods or services, often used as a strategy to increase demand or sales.
Unsold Donuts
The quantity of donuts that remain unsold at the end of a selling period, signifying excess supply or lack of demand.
Q12: <span class="ql-formula" data-value="\lim _ { x \rightarrow0
Q30: <span class="ql-formula" data-value="\frac { - 4 x
Q35: <span class="ql-formula" data-value="f ( x ) =
Q94: A new piece of equipment cost a
Q100: <span class="ql-formula" data-value="\left\{ \begin{array} { l }
Q125: <span class="ql-formula" data-value="f(x)=6 x^{2}+12 x-3"><span class="katex"><span class="katex-mathml"><math
Q128: <span class="ql-formula" data-value="f ( x ) =
Q189: z = x + 7y + 9
Q214: <span class="ql-formula" data-value="f ( x ) =
Q235: <span class="ql-formula" data-value="\frac { 1 } {