1. Correct: b = - 3
2. Idk what your answer is for the 2nd one, but it's 4. Here's why:
2(t + 1) = 10
2t + 2 = 10
-2 -2
2t = 8
2 2
t = 4
3. Correct: x = -7
4. I think it's correct....
5. Correct: z = -3
6. Correct
7. Correct because if you substitute -189 for r, then divide -189 divided by 9, you get -21. Then, -21 + 8 will equal -13!
8. Correct: E = 5
I'm not done yet.. soooo.... brb
