HELP What is the concentration of a solution, expressed in g/100 mL, if 7.2 g of solute is dissolved in 25 mL of water?

Which statement describes the term economics? a. it is the study of using limited resources to fulfill wants and needs. b. it is the study of how governments fulfill the wants and needs of nations. c. it is the study of how people spend their money to fulfill wants and needs.

Can you decompose the numbers 20,740,6,000

What is the sum of these mixed numbers 4 2/3+ 3 1/9