What action by ming emperors greatly improved the transport of agricultural goods in china

Answer and Explanation:

The Ming emperors rebuilt the Grand Canal (a man-made waterway in China) which subsequently improved the transportation of agricultural goods and food: the rebuilt canal made it easier to ship grains from southern China to Beijing, and to convey other types of food and agricultural products to soldiers who were guarding the northern borders.

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".