Choose two statements (the original conditional statement and its converse) that could form the biconditional "x = 1 if and only if x - 1 = 0."
0 A. If x-1 = 0, then x = 1.
B. If x= 1, then x-10.
C. If x = 1, then x-1 = 0.
m D. If x = 1, then x-1 +0.

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.