Answer two questions about Systems A and B: System A
System B
4r + 16y = 12
4x + 16y = 12
2 + 2y = -9
x + 4y = 3

There are 12 boy and13 girls in a class. if the teacher randomly chooses a student’s name out of a hat what is the probability it will be a girl

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?