Apopulation of zebras experienced ten births six deaths to predation three deaths to disease three individuals joining the population and zero individuals leaving what is hsppening to the population growth

Let's count them!

the initial number of zebras, let's call it z:

A population of zebras experienced ten births

this means:
z+10

 six deaths to predation
this means:
z+10-6

three deaths to disease
this means:
z+10-6-3

three individuals joining the population
this means:
z+10-6-3+3

and zero individuals leaving
this means:
z+10-6-3+3+0

now, let's sum it up:
z+10-6-3+3+0=z+10-6-3+3=z+10-6=z+4

so the population grew (by 4 individuals); it's a positive population growth!