A car is purchased for $38,000. Each year it loses 30% of its value. After how many years will the car be worth $10,700 or less? (Write the smallest possible whole number)

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest