Write the number 254 as a sum of hundreds, tens, and ones

What is the value of x? enter your answer in the box. (cm)

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

At 6 1/2 cents per pound of string beans how much does 7 pounds cost