The English measuring system classifies the measurement of cups in only 10 sizes: 1/4 cup, 1/3, 1/2, 2/3, 3/4, 1, 1 1/4, 1 1/2, 1 3/4, 2. This is because the scale that the international metric system and the English system agreed was only for these sizes due to the closed tens and hundreds goal. It is easier to make conversions from one system to the other, instead of smaller sizes that would require less closed conversions.
The British Invasion was a movement of the 60s where musicians from the U.K. would come to the United States to perform and share their British culture. One of the most famous groups that was a part of the movement was the Beatles and they impacted pop music by bringing new sounds through their song writing
Abstract paintings are things they see as a painting. It's their creative way of expressing themselves. Most people don't see it as art because it doesn't look like "art" but to others, it looks like art.