Answer:
x=20
Explanation:
3x-10+5x+30=180 (co-interior angles=180)
8x+20=180
8x=160
x=20
Answer:
D. the Amazon River
Explanation:
The Amazon River is officially the second longest river in the world, though there are some people that suggest that it is actually the longest one. This river though is the one that has by far the largest amount of water compared to any other river. The Amazon River is located in South America, and it forms the Amazon Basin where the largest tropical rainforest in the world is located, the Amazon rainforest. This river runs roughly in west-east direction, starting from the eastern slopes of the Andes and ending up in the Atlantic Ocean, with the majority of its flow being through the largest South American country, Brazil.
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Precambrian rocks<span> are mostly covered by rock systems of more recent origin, but where visible they commonly display evidence of having been altered by intense </span>metamorphism<span>. Precambrian rocks often occur in shields, which are large areas of relatively low elevation that form parts of continental masses.</span>
