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## Pre-algebra

### Unit 11: Lesson 5

Working with powers of 10

# Approximating with powers of 10

## Problem

Ten years ago, Rapunzel's hair was 19, start text, space, c, m, end text long. Now her hair is 20, comma, 193, start text, space, c, m, end text long.
Approximately how many times as long is Rapunzel's hair now as it was ten years ago?