Acontractor claims that their soundproofing will remove 83% of the sound intensity inside the room. if 83% of the sound intensity inside the room is removed, the new sound level will sound what % less loud to people in the room? round your answer to the nearest 1%.

Arrange these numbers from least to greatest 3/5 5/7 2/9

Write an algebraic expression for the word expression the quotient of c and 8

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2