Which linear equation represents each graph?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Write the rational number in lowest terms 99/-15

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?