X-y=3 what is this in slope intercept form

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.

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Can someone answer this question for me