What is the equation of bd simplified? ?

You are making a battery for a science project. you have copper wire for your first electrode. you need to choose a conductor, a second electrode, and a device to plug into your battery. you have already chosen a lemon conductor. complete each statement below about the options that include a lemon conductor.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122