Answer:
...what are the following for reference?
Step-by-step explanation:
Answer:
140
Step-by-step explanation:
Because the lines are parallel:

Hope this helps!
Answer:
yes i think so it looks quite accurate
Answer:
a = 45
Step-by-step explanation:
Cross multiply: 2a =90
Divide both sides by 2: 45
I hope this helped, please mark Brainliest, thank you!
Answer:
20
Step-by-step explanation: