TEMA: Metodo de sustitucion El triple de la suma de dos numeros es 25 y el doble de uno de ellos es 14

Lenguaje algebraico.

Bruce is getting materials for a chemistry experiment his teacher gives him a container that has 0.25 liter of liquid in it. bruce need to use 0.4 of this liquid for the experiment. how much liquid will bruce use?

What expression is equivalent to log3(x+4)

Find the solution on the interval [0, 2pi)