Question

HELP (question in image)

Answer 1

The answer is C


10(1)-1=9
10(2)-1=19

It’s the only answer that applies to all

Answer 2

C) F(n) = 10n-1

Explanation:

C) F(n) = 10n-1

Try a few points

F(n) = 10n-1

= 10(20) - 1

= 200-1

= 199 >>> which matches the table

F(n) = 10n-1

= 10(5) - 1

= 50-1

= 49 >>> which matches the table

F(n) = 10n-1

= 10(1) - 1

= 10-1

= 9 >>> which matches the table