Ladybugs eat aphids on plants. Ajoy counts the number of ladybugs in one square meter of his garden. To estimate the number of ladybugs in the entire garden, Ajoy needs the

Ajoy counted ladybugs in one square meter, so he has an estimate of ladybugs per unit of area. To estimate the total for the garden, he needs the garden’s dimensions to find its area and scale up the count. The ladybugs’ life span, the number of plants, and the size of one ladybug do not tell him the garden’s area.

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