Find the equation of the perpendicular bisector of the segment ab, if a(1, –2.5) and b(5, 5.5). if the perpendicular bisector of ab intercepts the y-axis at point p, what are the lengths of pa and pb?

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

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

In an improper fraction, is the numerator equal to, less than, or greater than the denominator