how can i improve my english vocabulary in less than 2 weeks? And how do i become better in math, science and other subjects?1

Match the vocabulary words to their definitions. 1. amendment to officially endorse or approve something, usually a document 2. carpetbagger a southern white who joined the republican party during reconstruction 3. monopolize a change in a legal document, such as the constitution 4. nativism a system of commerce in which several companies work together to control prices and limit competition 5. ratify favoritism toward the native-born citizens of a country 6. scalawag northerner who moved to the south during reconstruction 7. trust to control all of a product or another person's time