Answer:
399
Step-by-step explanation:
To find the population in a future year, use the formula:
[tex]A = P (1+/-r)^t[/tex]
where A is the amount, p is the starting population, r is 5% or 0.05, and t is the number of years.
Since the population is increasing it is addition. Here we are finding A. Substitute P =380, r=0.05 and t=1.
[tex]A=P(1+r)^t\\A=380(1+0.05)^1\\A=380(1.05)\\A=399 \\[/tex]