On a map, 1 inch equals 5 miles. Two cities are 7 inches apart on the map. What is the actual distance between the cities? The actual distance between the cities is ___ miles.

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Could someone with number 1 and 2

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?