Answer:
50
Explanation:
abc has to be 110
triangle angles add to 180
110+20=130
180-130=50
Answer:
taking data from a population rather than a specific group of people to gather information from
(random and most representative on a large scale of people)
The answer would be "Rhyolite Porphyry"
It is a rock that contains
a) Orthoclase + Orthoclase phenocryst = 35 % + 15 % = 50 % = plagioclase feldspar
b) Quartz = 30%
c) Alkali fled spar = 20%
Doldrums is the calm area near the equator.