** SOLVED **
Allison has some pennies and some nickels. She has no more than 23 coins worth a minimum of $0.75 combined. If Allison has 6 pennies, determine all possible values for the number of nickels that she could have. Your answer should be a comma separated list of values. If there are no possible solutions, submit an empty answer.
Answer: {14, 15, 16, 17}