Need help on this question I’d really appreciate it thanks!

The “death throes” of stars are amongst the most complex phenomena in all of astronomy, and the “corpses” of stars amongst the most energetic and exotic objects in existence. beginning at the end of the core helium fusion stage in a star’s life, describe in detail the post-main sequence development of both (a) a 1.0 solar mass star, and (b) a 25.0 solar mass star. in what significant ways do they differ? what role does each of these types of stars play in the "star-gas-star" cycle and the evolution of chemical elements in our galaxy?

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

Determine the maximum r-value of the polar equation r =3+3 cos 0