This is not hard to simplifi all you need to do is collect like terms because 3 and 2 are like terms we put them together making 3x - 5 because when you have 2 plus you make it into a minus. I hope this helped you.
Ba = 8,ac = 16 is the correct one
5p + 2,000,000 = 22,500,000
5p = 20,500,000
p = 20,500,000/5
p = 4,100,000 population in 1950
A = 4 km/jam
r = 1/2
jarak terjauh
s = a/(1 - r)
s = 4/(1 - 1/2)
<span>s = 8 km</span>