Math question

                                                         a a a a a a a a a a a a a a a a a a a a
                                                         a a a a a a a a a a a a a a a a a a a a
                                                         a a a a a a a a a a a a a a a a a a a a
                                                         a a a a a a a a a a a a a a a a a a a a


                                                How many a's are in this array?



                                If you don't know what a array is go to this site.
                              http://www.brainpopjr.com/math/multiplicationanddivision/arrays/grownups.weml


answer
80