Answer:
I'm glad you asked!
Step-by-step explanation:
OK,let's simplify the number for a equivalent expression.

Distribute:


Combine Like Terms:



The Final Answer is : 
Answer:
pretty sure its 75 degrees
Step-by-step explanation:
subtract 105 and 30 degrees and if you had to find the one on the top it would be the same process
For 16/18 it would be 8/9
For 10/15 it would be 2/3
Simplify both sides of the equation
Subtract 2 from both sides
Divide both sides by 5


OR
