Find the measure of <JKL =63°

Use set builder notation to represent the following set: { -3, -2, -1, 0}

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?

Can someone me with these two circle theorem questions asap?