The value of greta's rolls of coins is $121.00. if pennies and dimes come in rolls of 50 coins each, and nickels and quarters come in rolls of 40 coins in each, which of these combinations could greta have?

Answer: Without the choices, we cannot exactly determine the combination that Greta has. However, we can write an equation that must be satisfied by the answer.

Let D = the number of dime sets.

Let N = the number of nickel sets.

Each dime set is worth $5. 50 x 0.1 = 5

Each nickel set is worth $2. 0.05 x 40 = 2

Therefore, we can write the following equation relating the number of dime and nickel sets.

5d + 2n = 121

Your solution must satisfy this equation. Just plug them in and test them.