A car priced at £11 000 decreases in value at a rate of 10% per year. A van priced at £12 400 decreases in value at a rate of 15% per yea.
a) Find the cost of the car after one year. = £9900
b) Find the cost of the van after one year. = 10 540
c) Which cost more after one year? By how much. = The van, by £640
--- I already know the answers, but i need explanation . show me your working out. or else your answer is useless and no help so plz show me ur working out---