Question

question in comments , help please !!!!!

Answer 1

45 degrees

Answer 2

^

Answer 3

do you want to know how

Answer 4

yes

Answer 5

okay you do this
4n-15+3n = 90. you equal to 90 because there its a right angle where they are.
then you combine like terms to get 7n-15=90
then add 15 to 90 , because to cancel it out and get the variable alone you add it to both sides
which leaves you with 7n=105
then divide 105/7 and get x=15.
when you find x you plug it back in to that angle and thats how i got it.