Question

Which number is a rational terminating decimal?(1 point)
Responses

511
5
11

5 over 11

39−−√
39

square root of 39

78
7
8

7 eighths

12−−√
12

square root of 12

13

Answer 1

7/8 — it equals 0.875, a terminating decimal.
(Reason: in lowest terms a rational number terminates iff its denominator has only 2 and/or 5 as prime factors; 8 = 2^3.)