Abusiness reports a net income of -6,291 over a 9 month period. what is the average income per month for that period

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Me find the value of x each figure.