Which of the following is run on sentence

How to use order of operation in 20 divide by 4 multiply 5 = 1

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120