Answer:
Hope this helps!
Step-by-step explanation:
Answer:
71°
142°
Step-by-step explanation:

9t - 3t + 4
= 6t + 4
(hence 9-3)
you can do this due to the t being the same unit (classified as a like term). if it were 9t - 3g + 4, it would have to stay the same.
Answer:
I think the right answer is: Acute