Momy !
the value of bianca's rolls of coins is $136.00. if pennies and dimes come in rolls of 50 coins each, and nickels and quarters come in rolls of 40 coins each, which of these combinations could bianca have?

a. 6 rolls of pennies, 9 rolls of nickels, 4 rolls of dimes, and 8 rolls of quarters
b. 4 rolls of pennies, 6 rolls of nickels, 9 rolls of dimes, and 8 rolls of quarters
c. 4 rolls of pennies, 6 rolls of nickels, 8 rolls of dimes, and 9 rolls of quarters
d. 6 rolls of pennies, 4 rolls of nickels, 9 rolls of dimes, and 8 rolls of quarters