Harrison shared his video with 7 friends. His friends continued to share it, doubling the number of viewers each day.

9

step-by-step explanation:

$12. that is my answer.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

it would open into a square depending on the type of envelope i’m not sure about the second part