题目

       Everyone would like to be a millionaire but can you imagine having over S 30 million and only being 20 years old? Britney Spears from Kentwood，a small town in Louisiana，is an international pop superstar with not only S 30 million but also a S 2 million house in LA．At her young age，she can look after her family financially all her life．        This year is a big year for Britney，she is currently on a 31 date tour of the US and every concert is a sell out．That means she plays in front of a crowd of around 18,000 every time．It’s a tiring schedule but brings gr用两个同样的小正方形拼成一个长方形，周长减少16厘米，小正方形的边长是（_____）厘米，周长是（_____）厘米。