The half-life of a radioactive kind of protactinium is 1 minute. If you start with 64 grams of it, how much will be left after 3 minutes? in grams ​

Question 10jur's car can travel 340 miles on 12 gallons. jack's car can travel 390 miles on16 gallons. which person has the best mileage (miles per gallon) and what istheir mileage?

17 in long 1.3 ft wide and 8in high what is the volume

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.