Answer:
c
Step-by-step explanation: just trust me.
Hello,
1: 9n-3=21 ==>B
2: 3n+9=21 ==>A
3: 9n-3=21 ==>B
4: 3n-9=21 ==>C
I wish to have understood all those sentences.
Do you have a Ti-84 calculator you need one to solve this problem.
Answer:
2) 30, 70, 80
Step-by-step explanation:
Well there has to be <em>3 angles</em> that all add up to <em>180°</em>.
1)
100+130+130
=360
2)
30+70+80
= 180
3)
25+3+35
=63
4)
45 + 105 + 120
=150
150+120
270