The Following Table Shows the Amount Spent, in Billions of Dollars

question 66

Short Answer

The following table shows the amount spent, in billions of dollars, on recreational boats and accessories in the United States during the period 1999-2001. (Let S be the set of all dollars represented in the table.)
Compute the cardinality of the set described as $n ( A \cap ( N \cup U ) )$ . $$\begin{array} { | l | l | l | l | l | } \hline & \text { Used Boats, } \boldsymbol { U } & \text { New Boats, } \boldsymbol { N } & \text { Accessories, } \boldsymbol { R } & \text { Total } \\\hline \mathbf { 1 9 9 9 , } , \boldsymbol { A } & 5 & 7 & 3 & 15 \\\hline \mathbf { 2 0 0 0 } , \boldsymbol { B } & 7 & 7.5 & 2 & 16.5 \\\hline \mathbf { 2 0 0 1 } , \boldsymbol { C } & 8 & 8 & 5 & 21 \\\hline \text { Total } & 20 & 22.5 & 10 & 52.5 \\\hline\end{array}$$ ​
​ $n ( A \cap ( N \cup U ) ) =$ __________ billion dollars.

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Definitions:

Bryozoan Lineages

The evolutionary branches representing the diverse groups within the Bryozoa phylum, small aquatic invertebrate animals.

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Refers to the animal species that inhabit the Earth during the current geological time period, known as the Holocene.

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A colorless, odorless gas produced by burning carbon and organic compounds and by respiration. It is naturally present in the air and absorbed by plants in photosynthesis.

Marine Life

Organisms that inhabit the ocean and other saltwater environments, including fish, mammals, invertebrates, and plants.