What's an excuse if you miss a class

Which representation has a constant of variation of -2.5

How much orange juice do you need to make 2 servings of lemony orange slush?

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?