When a grizzly bear hibernates, its heart rate drops to 101010 beats per minute, which is 20\%20%20, percent of its normal value. What is a grizzly bear's normal heart rate when not hibernating?

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Coral reefs,temperate grasslands, and kelp forests are all in danger.