Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution.
-2x+y=
−2x+y=
\,\,5
5
-8x+4y=
−8x+4y=
\,\,20
20

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.