How do you find the ace length of a circle

Hello!

To find the length of a circle, you will need the following formula: 


Having the following data:  approximate is  and also the value of the radius (r) of the circumference, known the value of the radius (r), the length of the circumference is given by twice the product of the radius by .

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.