How is this right? can someone explain to me how to do this?

what is the exact area of a circle with a diameter of 44 ft?

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

The graph shows the distance kerri drives on a trip. what is kerri's speed?

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?