# Chapter 2 - Solving Equations - Chapter Test - Page 157: 15

105 hummingbirds are present.

#### Work Step by Step

In order to find a part, we take the percentage and divide it by 100 to turn it into a decimal. We multiply this decimal by the original number to get the answer. Thus, we divide 30 by 100 to get .3. We multiply 350 by .3 to get an answer of 105.

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