Answer:
Here's for part a: 8.43 x 10^5 3.19 x 10^8
I'm not really sure for part b.
I hope this answer for part a helped...
48 is the greatest common factor
Answer: An extreme environment is a habitat characterized by harsh environmental conditions, beyond the optimal range for the development of humans, for example, pH 2 or 11, -20*C or 113*C, saturating salt concentrations, high radiation, 200 bars of pressure, among others.
2.608 rounded to the nearest tenths = 2.6
