Which cases lead to expressions with different results? Explain.

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.

Which one ? is the answer and how to find this answer

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way