How many real sixth roots are in 15,625?

There are two real roots  (5 and -5) and 4 imaginary roots

answer:   n ≤ -3 or n < -5

step-by-step explanation:

-5 + 2n ≥ -11

+5             +5

2n ≥ -6

2/2 ≤ -6/2

n ≤ -3

-6 - 10n > 44

+6           +6

-10n > 50

-10/-10 50/-10

n < -5

i'm assuming it's looking for the missing length, which should be 4cm

hope this !