What next step should i take after learning hangul? IM LOST

At a price of books will be both supplied and demanded. $10 $20 $30

Em um acidente, um caminhão carregado de solução aquosa de ácido fosfórico (h3po4) tombou, derramando cerca de 24,5 toneladas dessa solução no asfalto. quantas toneladas de óxido de cálcio (cao) seriam necessárias para reagir totalmente com essa quantidade de ácido? 2 h3po4 + 3 cao → ca3(po4)2 + 3 h2o a. 14t b. 29t c. 42t d. 7t e. 21t

Language arts : : which answer choice is correctly punctuated? question 2 options: a. for the apartment we need lamps rugs pictures, and pillows. b.mom is giving us some dishes, utensils and pots. c.did you remember to shop for soap, tissues and, paper towels? d.yes, i bought cleaning supplies, first aid items, and light bulbs.