Which of the following is an irrational number 5/4 31/7

Convert 2000 swiss francs to dutch guilders

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.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?