The answer is 5.5.
hope this helps!!
ANSWER

EXPLANATION
The given fractions are:

We factor to obtain:

We cancel the common factors to get:

We multiply the numerators and also multiply the denominators to get:

Therefore the two fractions simplifies to 
Answer
4+21m
Explanation
Use the distributive property 4 times 1 and 4 times 7m keep the m
The answer is 90 degrees. SO it would be B