Tolong bantuannya kak :) Jawab yg nomor 4 saja

diket : t5 = 2000 bakteri
a) 1000 x 2^k5=2000
2^5k=2000/1000
2^5k=2
2^5k=2^1 => 5k =1
k=1/5
model matematikanya 1000 x 2^1/5t