What is the common difference, d, of the sequence? -94, -74, -56, -20, pls me!

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

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4

Write the equation in general quadratic form: plz !