Question

plz plz plz answer this fast​

Answer 1

Answer:

Answer is 99.

Step-by-step explanation:

Writing it as

1 : 11 :: 9 : x

As product of extremes is equal to product of means so,

(1)(x) = (11)(9)

x = 99.

Answer 2

Answer:

Hope it will help you.

Mark my answer as brain list.