Challenge what is the value of e? if ax4=e b/4=e c+4=e d-4=e and a+b+c+d=25

Ibeg you to me 20. a reaction produces 4.93 l of oxygen, but was supposed to produce 1 mol of oxygen. what is the percent yield?

Pls yall i really need the answer fr fr

The table shown below gives the approximate enrollment at the university of michigan every fifty years. how many more students were enrolled at the university of michigan in 1950 than in 1900?