To get to his parents' house, Gavin would have to drive due north 8 kilometers. To get to his grandparents' house, he would have to drive due east 2 kilometers. What is the straight-line distance between the parents' and grandparents' houses? If necessary, round to the nearest tenth. FER​

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