I am a 15 year old boy, should I shave my legs? and my armpits are the same as my legs should I shave them too?

Which of these is a controllable risk fator for disease

The nutrient facts label on a food package lists the following: iron 50%. what does this figure indicate?

Two shoppers bought meat at the supermarket deli. the first shopper bought 3 pounds of meat for $9,87 . the second bought 4 pounds of meat for $16,76. can you tell if both shoppers bought the same kind of meat.