Which type of energy refers to the sum of potential and kinetic energies in the particles of a substance?

Ineed in figuring out this problem.

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?

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers