Find the axis of symmetry of the parabola. Y=2x^2+4x-1

What is the upper quartile in the box plot?

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?