Write a matrix model that represents the female cheetah population dynamics using info below:

There are 4 age classes: cubs(first year of life), adolescents( 2nd year of life), young adults(3rd year of life) and adults (4rth year of life)

6%of cubs survive to adolescence, 70%of adolescents survive to young adults, 80%of young adults survive to adulthood and 80%of adults survive from year to year.

Young Adult females produce an average 2 female cubs per year, while adult females produce on average three female cubs per year.

Would this matrix have 3 or 4 rows? Once I know this matrix model I can find the eigenvalues, but the word problem has so many parts! Help is much appreciated.