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            <video:description>En esta lección de matemáticas, exploramos la expresión 5 t más 3 para calcular el costo de participar en la rifa de un hospital para recaudar fondos. Al evaluar la expresión para diferentes valores de t, el número de boletos comprados, encontramos los costos por comprar 1, 8 y 10 boletos, que son 8, 43 y 53 dólares, respectivamente.</video:description>
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            <Attribute name="description">Vamos a usar nuestro conocimiento del orden de las operaciones para evaluar esta expresión. Nos vamos a enfocar específicamente en los exponentes.</Attribute>
            <Attribute name="author">Sal Khan</Attribute>
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            <video:title>Evaluar expresiones con variables: exponentes</video:title>
            <video:description>Vamos a usar nuestro conocimiento del orden de las operaciones para evaluar esta expresión. Nos vamos a enfocar específicamente en los exponentes.</video:description>
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            <video:category>Sustitución y evaluación de expresiones</video:category>
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