Question

Helpppp meee plssss will mark you big brain

Answer 1

Here is the answer to your question

`= 16`

Answer 2

Explanation:

16. Since the angle between the two values is 90, that is already half of 180, which is the total of all of the angles. So you make the equation, 3n+3+2n+7+90=180, which simplifies down to 5n+100=180, and after solving you get n = 16.