As a nurse, part of your daily duties is to mix medications in the proper proportions for your patients. For one of your regular patients, you always mix Medication A with Medication B in the same proportion. Last week,
your patient's doctor indicated that you should mix 20 milligrams of Medication A with 14 milligrams of
Medication B. However this week, the doctor said to only use 7 milligrams of Medication B. How many
milligrams of Medication A should be mixed this week?

milligrams