Critique Reasoning Lexi says, "To solve 243 + 179,
I can just count on with place-value blocks to find the 100, 200, 300,
another hundred from the 11 tens is 400, one more ten and 12 ones is 422!"
How is Lexi's way like Steps 1 and 2 above?

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