243.875 to nearest tenth, hundredth, ten and hundred

Three coins are flipped. what is the probability that there will be at least two tails?

Aflower has 26 chromosomes. to create a new flower, how many chromosomes would a sperm cell have? what is this process called? part 2: within a flower cell that has 26 chromosomes, how many chromosomes would a cell that is created within the stem of a flower as it grows, have? what is this process called?

Answer for 10 points show work you guys in advanced < 3