$\"\"$

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Margo uses dots to track her activities on a calendar.

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Red dots $\"\"$ represent homework, yellow dots $\"\"$ represent work and green dots $\"\"$ represent track practice.

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In a week, she uses $\"\"$ red dots, $\"\"$ yellow dots and $\"\"$ green dots.

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Hence $\"\"$ , $\"\"$ and $\"\"$ .

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Find the amount of activities does margo do in $\"\"$ weeks.

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An expression of total activities in $\"\"$ weeks is $\"\"$

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$\"\"$ (Substitute $\"\"$ , $\"\"$ and $\"\"$ )

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$\"\"$ (Add inside terms)

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$\"\"$ (Add inside terms)

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$\"\"$ (Multiply)

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Therefore, Margo uses $\"\"$ dots to represent activities in $\"\"$ weeks.

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$\"\"$

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Margo uses $\"\"$ dots to represent activities in $\"\"$ weeks.