Question

some one plz help me. im stuck on both questions. ppl plz do not delete question. if you dont want to answer than dont. but extra points and branlist for first question

Answer 1

7) Right angle = 90°

90= 32 + (2x-12)
90=2x + 20
70= 2x
35=x

Answer: A) 35

8) Lines equal 180°

180= 60 + (4x + 20)
180= 4x + 80
100= 4x
25= x

=4x + 20
=4(25) + 20
=100 + 20
=120

Answer: B) x=25; 120°

Hope this helps! :)

Answer 2

`\bf 2x-12+32=90\implies 2x=70\implies x=\cfrac{70}{2}\implies x=35\\\\ -------------------------------\\\\ 60+4x+20=180\implies 4x=100\implies x=\cfrac{100}{4}\implies x=25`

well, the exterior angle is then 4(25) + 20.