Final answer:
To calculate the change you should get back from buying marbles, multiply the cost per marble by the number of marbles then subtract that total cost from the payment made using quarters.
Step-by-step explanation:
To calculate the total cost of the marbles, we need to multiply the cost per marble, which is $0.17, by the number of marbles purchased, which is 3. Therefore, the total cost is 0.17 x 3 = $0.51.
Next, we need to calculate the total value of the quarters used to pay. Since each quarter is worth $0.25, and we used 4 quarters, the total value of the quarters is 0.25 x 4 = $1.00.
To find the change, we subtract the total cost from the total value of the quarters. So, $1.00 - $0.51 = $0.49. Therefore, the change you should get back is $0.49.