Posted by belk on Sunday, August 28, 2011 at 4:48pm.
what is the average weekly food expense of the johnson family during a 4week period in which they spent $72.84, $61.20, $75.48, and $68.76 for their weekly grocery shopping?

math  JJ, Sunday, August 28, 2011 at 4:51pm
To find an average get a total of the entries and divide by the number of entries.
In this problem get a total of the expenses for the 4 weeks. Then, take that total and divide by 4 to get the average.
Hope that helps!
JJ 
math  belk, Sunday, August 28, 2011 at 4:54pm
thank you !!!

math  katt, Wednesday, August 15, 2012 at 3:28pm
69.57