Pls help me, solve this by using the balancing method

2n + 20 = 120

What is the definition of exponential decay?

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?

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose