How did the Chinese gunpowder occur and give did it affect the Chinese empire Pls help!!

More gunpowder-based weapons were invented by the Chinese and perfected against the Mongols in the next centuries, including the first cannons and grenades. The psychological effect alone of the mystifying new technology likely helped the Chinese win battles against the Mongols, historians believe.

Explanation:

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whose power in the senate is equal to the power of the speaker of the house?

part a. there were 250 teenagers surveyed (100% of tenagers = 250)therefore 1 % = 250/100 = 2.5 76% = 1% x 76 = 2.5 x 76 = 190 teenagers of the 250 surveyed liked burgerspart b: jane surveyed 25% (which is equal to 50 teenagers, i.e. a quarter of the teenagers surveyed is 50) to get 100% we simply get 4 quarters, i.e. multiply 50 by 4 = 200 teenagers were surveyed by jane. part c: it is impossible to give an example where a percentage is greater than 100%, since, by definition , percentage means "per 100".