Might be terribly wrong since it's been a while that I've done fractions, but I got -11/20. Hope this helps!!!
So, we have the following equation...

To do this its pretty simple just multiply 12 by 4.
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Your final answer is
!
I only need 3 more brainliests so if i could get one that would be a big help!
Step-by-step explanation:
b.
The sum of two opposite interior angles equals one exterior angle
111°=60°+‹G
‹G=111°-60°=51°
c.
We use the same property above
3x+4x+5=68°
7x=68-5
7x=63
x=63/7=9
‹D=4(9)+5
‹D=41°
I believe 1 is linear and 2nd is exponential