Wouldn’t the answer be 19.
12. 6$
13. 60 birds
14. 10 inch
Answer:

if u substitute the givens in the eqn we will get..

then collect like terms


Answer:
k = -10/9
Step-by-step explanation:
Take the antilog:
36(3k +7) = 132
3k +7 = 3 2/3 . . . . divide by 36
3k = -3 1/3 . . . . . . subtract 7
k = -1 1/9 . . . . . . . divide by 3
You were doing everything correctly! Keep in mind that a straight line is 180 degrees and a triangle has 180 degrees, because I see that some of your questions involve lines.
also remember vertical angles! If you have any specific question, I would be happy to help!