3x + y = 5 sustitución -1​

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.

Can someone me do math because i am having a breakdown rn because i don’t get it

If there are 3.281 feet in 1 meter, how many inches are in one centimeter