How do you find the slope on a graph

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.

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?