01. En la casa de Augusto hay un tanque de agua con dos caños, El caño que se encuentra arriba lo llena en 3 horas y el caño que se encuentra abajo lo vacía en 4 horas. ¿En qué tiempo se llenará el tanque hasta la mitad si ambos caños se abren al mismo tiempo?

You can find the area of a rectangle by multiplying the length and height. so multiply 1/2*7/4(which is the simpler version of 1 3/4) and you get 7/8 as your answer.

Its d so thats how it would would back from 1.0 form three four two

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.