When either low-mass or high-mass main sequence stars run out of hydrogen in the core, the core will contain .

Find the area of shaded region z=-0.89

Asoccer team has played 25 games and has won 60% of the games it has played. what is the minimum number of additional games the team must win in order to finish the season winning 80% of the games it has played?

Land is to arable ; river is a, navigable b, shallow c, presumsor d, water