Answer:
52º, 128º
Step-by-step explanation:
8. Because ∠6 is an opposite angle to ∠5, ∠6=∠5=52º;
9. Because line a//line b, ∠6=∠4=52º, so ∠7=180º–52º=128º
Answer:
D
Step-by-step explanation:
A,B,and C can not solve. because they have wrong answers.
<span>3n + 4 = 7
</span><span>3n = 7 - 4
3n = 3
n = 1</span>
Answer:
Step-by-step explanation:
