the ratio of the present ages of tho persons is 4:5. Before 6 year's if the ratio of their ages was 7:9 find their present ages?​

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny. i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

Energy needs, in total kilocalories per day, are greater during than any other time of life. a. childhood b. infancy c. adulthood d. adolescence

How many calories are in one pound of fat