What is the value of the expression (0.4)2

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

If 5x - 2 = -12, then x = a) -50 b) -4.4 c) -2.8 d) -2

Given that s is the centroid of triangle mno, find sq.