It is topographic because the topographic maps shows differences in the heights of the land.
The person is 30 years old! Here's how you solve it:
A = .8 (220-a)
152 = .8 (220-a)
152 = 176 - .8a
.8a = 24
a = 30
Hope this helps!
There’s no list or options but, an autotroph is something that makes its own food, like plants. :) AUTO means SELF!