Cross multiply 3/10 and x/70. You get 10x=210. Divide by 10 and get x=21. So it drops 21 degrees. 70-21=49.
Answer:
1st: She did not find the correct vertex; it should be at (8, 5).
3rd: She used the wrong length for the base; it should be 7, like the given base.
4th: She used a side length of the parallelogram for the height instead of a line segment perpendicular to the base; the height should be 3.
Answer:
20,000 tons plus 14 million