I pay 25,000 for a car it depreciates at a rate of 10% what is the value of the car in 7 year

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

If i have 20$ and i gave 5$ away how much i got

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )