Final answer:
The expression that represents the price 'c' of a car after a discount of 25% is applied is D) 0.75c.
Step-by-step explanation:
The expression that represents the price 'c' of a car after a discount of 25% is applied is D) 0.75c.
To find the discounted price, we multiply the original price 'c' by 0.75 (which is equal to 1 - 0.25). This represents a 25% discount because we are subtracting 25% from the original price, leaving us with 75% of the original price.
For example, if the original price of the car is $100, then applying a 25% discount would give us $100 x 0.75 = $75.