Answer:

Step-by-step explanation:
By AA Similarity, triangles ASR and EST are similar.
The ratio of the lengths of the sides of triangle ASR to those of EST is 6/8 or 3/4.

Also,

By a rule of proportions, you get





X would be 84 degrees, since its corresponding angle would be worth 84.
Hope this helped!
Only letter a has an answer. Pls. see attachment.<em>
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The probability that one cubic meter of discharge contains at least 8 organisms is 0.7798
Six and eighty hundred thirty seven thousandths