How many digits long could the repeating cycle of a repeating decimal be if the denominator of the rational number is 7? (1 point)
A. infinitely long
B. up to six digits long
C. any finite length
D. up to seven digits long
The answer is D. up to seven digits long.
When the denominator of a rational number is 7, the repeating decimal can have a repeating cycle of up to the same number of digits as the denominator. Since the denominator is 7, the repeating cycle can be up to 7 digits long.