To find the sale price of the game after the discount and the total cost for 3 copies, we can follow these steps:
a.) Calculate the sale price of the game after the discount:
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Find the discount amount:
- Original price = $60
- Discount rate = 25% (0.25)
- Discount amount = Original price × Discount rate \[ \text{Discount amount} = 60 \times 0.25 = 15 \]
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Calculate the sale price:
- Sale price = Original price - Discount amount \[ \text{Sale price} = 60 - 15 = 45 \]
So, the sale price of the game after the discount is $45.
b.) Calculate the total cost for 3 copies of the game:
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Total cost for 3 copies:
- Total cost = Sale price × Number of copies \[ \text{Total cost} = 45 \times 3 = 135 \]
So, the total cost after the discount for 3 copies of the game is $135.