Please help me its for a test, ill give you brainlist Write an equivalent expression to 216 + 12x

Can someone pls ! pls answer all. no explanation needed..

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

Find the greatest common factor of the followig monomials 46g^2h and 34g^6h^6