On three examinations, Dana received scores of 82, 89, and 80. What score does Dana need on the fourth examination to raise his average to 85?

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.

Find the area of an equilateral triangle with a side of 6 inches

The area of each triangle is 7 square units. the surface area of the triangular prism is