Yep! YOU are correct! But thanks to everyone else that helped!

Yep, 2.5 is right.

Thanks so much!

The area is 144, not the perimeter! Please help me more!

1.

10−1

=

9

3(5−4)

(3)(1)

3

=3

2.

5(3−2)x2−2

=5x2+−2

??? Is this a insult? I accidently reposted on my post, not Chris'.

Because 8 was wrong. Apperently you could add neighbouring angles so the answer was 12.

Oops Sorry. That was a typo. I ment to say "Why is the answer not 8?" I originally said 8 but it said I was wrong...

Thanks! I was a bti confused about the \(\bowtie\) sign.

Correct!