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Lloraba mucho cuando niño. a. era b. fui c. estaba d. es

Read and select the correct option for the blank. an exchange student from mexico brings a typical food from his culture to school. after you ask, what can he say? —hola, amigo fernando. yo como el ceviche. —¿eres de méxico? —sí, soy de méxico y come la tortilla escribo la yerba mate escribe la yerba mate como la tortilla

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