Wendy found a small jar with pennies and counted them, and then challenged her brother craig to guess how many pennies she had. she gave him some clues to out. the number of pennies is between 70 and 100.you can divide the pennies equally into 5 groups. if you divide the pennies into 4 groups, there will be 3 pennies left over. if you divide the pennies into groups of 6 or 9, there will be 5 left over. if you divide the pennies into groups of 10, there will be 5 left over. how many pennies are in the jar?