January Jennifer begin Collecting 4 postage stamps per month in April her friend Allison started collecting six stamps per month what month

We can also solve this  with an equation.

Let x be the number of months that Jennifer has been collcting stamps and  (x -3) the number of months that Allison has been colllecting stamps.

So......

4x = 6(x-3)

4x = 6x - 18    add 18 to both sides   and subtract 4x from both sides

2x = 18            divide both sides by 2

x = 9

And 9 months after January is September........as Anonymous has said.....

January Jennifer begin Collecting 4 postage stamps per month in April her friend Allison started collecting six stamps per month what month will Jennifer and Alison have a number of stamps

January February March April May June July August September October November December

Jennifer                  4            8          12     16    20   24   28     32         36             40         44            48

Allison                                                       6     12   18   24     30         36    

Answer- September