Which is the coefficient of the variable in the expression 2-5x-4+8?

If 1 km = 0.621 miles, how many miles are in a centimeter

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.

Arestaurant added a new outdoor section that was 8 feet wide and 6 feet long. what is the area of their new outdoor section