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Lucy is pulling weeds out of her garden. The garden starts with 3 weeds, but each time Lucy pulls 1 weed, 3 more weeds grow in its place! How many weeds will be in Lucy's garden after she pulls 7 weeds

Respuesta :

Answer:

17 weeds

Step-by-step explanation:

We start with 3 weeds, and we know every time Lucy pulls a weed (-1) 3 more grow back (+3) for a net of (+2). We now go through this 7 times.

Start (3) -> 5 -> 7 -> 9 -> 11 -> 13 -> 15 -> 17

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