Answer:
the thrid one
Step-by-step explanation:
bc its all correct like i went over all of it and its correct glad to help bro!!!!!
Answer:

Step-by-step explanation:
finally

Answer:
75
Step-by-step explanation:
We have a 90 degree angle and a 15 degree angle that add up to 105. The angle that is missing can be found by doing 180 - 105 = 75 (since it's a straight line). X is vertical from the 75 degree angle, so 75 is your answer.
Answer:
b = -18
Step-by-step explanation:
-1/6b=3
Multiply each side by -6
-6*-1/6b=3(-6)
b = -18