If I answer it then its not in your own words…...
Answer:
Explanation:
To solve for r, simply means to isolate the variable:

The inverse of multiplication is division, so divide both sides by pi and h


the mitochondria aka your humans power center converts the food that you eat into molecules thus allowing your body to gain energy
B. the scientist just accepted the idea that they were extinct
B. Tundra - only biome with snow