Another spanish worksheet i need help on

Hola, me llamo aniyah y hoy voy a la tienda y necesito recoger ensalada, leche, queso, mantequilla y pan. porque vamos a tener un banquete

Write the correct definite article ( el, la, los, las ) for each word. if both masculine and feminine articles are possible, write both. 1. estudiante 2. comunidades 3. día 4. chicos

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