Final answer:
Matty spent a total of $200 on the coins by purchasing four coins at $50 each.
Step-by-step explanation:
To calculate the total amount Matty spent on the coins, we multiply the number of coins by the price per coin. Matty bought four coins at $50 each.
The calculation would be: 4 coins × $50/coin = $200
So, the total amount Matty spent on the coins is $200, which corresponds to option 3.