Answer: 8.9 grams
Explanation:
To find the total weight of all 10 pins, you simply multiply the weight of one pin by the number of pins:
Total Weight = Weight per Pin × Number of Pins
Total Weight = 0.89 grams/pin × 10 pins
Total Weight = 8.9 grams
So, the total weight of all 10 pins is 8.9 grams.