Is 203 a term of the ap 13,28,43,58

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

Someone answer asap for ! 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