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John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

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

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?