A new car, valued at $28,000 depreciates at 9% per year. What is the value of the car one year after purchase?

Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a

The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons