Answer:
r
=
1
Step-by-step explanation:
As a formula, you're saying 4*(n-7)=32
This solves to n-7 = 8, so n=15
Answer:
B
Step-by-step explanation:
∠ABC= 180° -142° (adj. ∠s on a str. line)
∠ABC= 38°
∠BAC= 180° -133° (adj. ∠s on a str. line)
∠BAC= 47°
∠ACB= 180° -38° -47° (∠ sum of △)
∠ACB= 95°
n°= 180° -95° (adj. ∠s on a str. line)
n°= 85°
n= 85
38 is the answer because 25+13=38