If y= -4/5x+6 what is the value of x when y=-6

Yuri, sam and dani had the same math homework last night, but none of them finished it. yuri finished 3/8 of her homework, sam finished 4/6 of her homework and dani finished 1/2. who finished the most math homework? who finished the least amount?

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

What are the exclude value of mn+3m