Answer:
she has $4 in nickels an $2 in dimes hope this helps and have a good day...
explanation I know this because it said in total she had $6 in her piggy bank so you put $2 in dimes and $2 in nickels and then it said she had twice as many nickels than she dose dimes so then u would add 2 more dollars to nickels that's how u get the answer.