Francine wants to know if a local chemical plant is releasing toxic waste that makes the frogs mutate. In one local pond, she catches 5 frogs with extra legs, 2 frogs with 2 heads, two frogs that are bright red, and 18 normal frogs. What percentage of the frogs have mutated, rounded to the nearest integer?
First add up the numbers of the three kinds of mutant frog: 5 frogs + 2 frogs + 2 frogs = <<5+2+2=9>>9 frogs
Then add that number to the number of normal frogs to find the total number of frogs: 9 frogs + 18 frogs = <<9+18=27>>27 frogs
Finally, divide the number of mutant frogs by the total number of frogs and multiply by 100% to find the percentage of frogs that are mutants: 9 frogs / 27 frogs * 100% = 33.333...%, which rounds to 33%
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