If (1 – 1.25)N = 5, then N =
Choose the correct answer.
A) − 20 B) − 140 C) − 4 D) 4 E) 400

Rationale: "( 1 – 1.25 ) n = 5 simplify to get : - 0.25 n = 5 rewrite as ( - 1 / 4 ) n = 5 multiply both sides by - 4 to get : n = - 20 answer : a"
Answer: A