Oh somebody please do help me

Bacteria

Step-by-step explanation:

Bacteria dominate the early process in compost and probably will make up 80 to 90 % of compost microbes. Most bacteria found in soils and in compost are decomposers. A teaspoon of fertile soil can contain anywhere from 100 million to a billion bacteria with representatives from 10,000 species.

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13