Using different coins/ notes

You have $6. 40 in your pocket.  What notes or coins could it be?  Can you show 3 different ways to show this amount?

EN: Use full dollars – $2/ Use coins to count/ skip count same coins to 100

EX: Can you use a mixture of coins?/ Can you apply groups of coins e.g 6x $1/ Can you show your thinking using a table?