Which of the following statements is NOT true regarding an expression written in scientific notation in form of a x 10^n ?

a. The value of a must be greater than or equal to 1 and smaller than 10.
b. The value of n must be an integer.
c. Doubling n results in a doubling of the value of the expression.***
d. Doubling a results in a doubling of the value of the expression.

2 answers

D is true, although for values of a greater than five, the result is not in correct scientific notation form.
C is not true, unless n is zero.
So your answer is correct :)
Hoped it helped!
correct, 100 is not twice ten