Half-life is the time needed for half of a sample of radioactive material to decay. Question 5 options: True False

Which of the following properties can be used to show

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

X+y=-4 x-y=2 use elimination with adding and subtraction