Mary mixes white paint and blue paint in the ratio of 2: 3 she makes 20 litres of paint. how much more blue paint does she need to add to the mixture so that the ratio of white paint to blue paint becomes 1: 7?

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

The function models the number of accidents

You borrow $25,000 to buy a boat. the simple interest rate is 4%. you pay the loan off after 10 years. what is the total amount you paid for the loan?