I'm timed please help

Write the ratio of corresponding sides for the similar triangles and reduce the ratio to lowest terms.

2 similar triangles. Triangle 1 has side lengths 14, 21, blank. Triangle 2 has side lengths 18, 27, blank.

a.

14/27= 21/28= 14/27

b.

14/18=21/27=7/9

c.

14/21= 18/27=2/3 E

d.

27/14 =28/21=27/14

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet. what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet