Help , please need it today . First one is preterite and the one at the bottom is irregular verbs - car , gar , and zar

Present tense review review present tense conjugations of regular -ar verbs. complete the following sentences using the correct form of the verb given in parentheses. it may also to review the tutorial, earning and saving. type the correct answer in each box. spell all words correctly. example: yo ahorro mi dinero. (ahorrar - to save) ella dinero. (ahorrar - to save) nosotros dinero en el supermercado. (gastar - to spend) ¿tú ? (trabajar - to work) ellos en el restaurante. (trabajar - to work) yo 100€ del cajero automático. (sacar - to take out)

Achemist mixes 4 liters of one acid solution with 10 liters of a 40% solution, resulting in a 30% acid solution. what is the value of x, the acid concentration of the first solution

Which sentence below has the same meaning as the following sentence