A train took 11.5 minutes to travel 10 km from station X to station Y. It stopped at station Y for 0.5 minutes. It then took another 24.0 minutes to travel 20 km from station Y to station Z. What was the average speed of the train (km/hr)? (Please show all statements and working to get full marks) 3 marks.

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.