How is it possible for two stars with the same absolute magnitude to have different apparent magnitudes?

Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

Describe characteristics of a good respitory surface