Which is the best example of a number written in scienific notations? a) .5 x 10^5b) .1254c) 5.367 x 10^-3d) 12.5 x 10^2

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

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

How is working backward similar to solving an equation?