These marbles are placed in a bag and two of them are randomly drawn. What is the probability of drawing two yellow marbles if the first one is put back in the bag before the second draw?

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.