Answer:
5 2/5
Step-by-step explanation:
sorry, I know the answer, but don't know how to explain in words
Answer:
C. 4.2a + 0.8
Step-by-step explanation:
Given:
The two binomials given for addition are:
and 
Now, adding both the binomials, we get:

Distributing the positive sign inside the second binomial, we get:

Now, combining like terms using the commutative property of addition, we get:

Simplifying the above expression, we get:

Therefore, the resulting addition of the given binomials is 
Hence, option C is the correct answer.
Answer:

Step-by-step explanation:
We want to find the sum of

We can rewrite this as

This becomes;

Recall that;

This implies that;

Combine like terms:

27 times 3= 81 then add 9 which then equals 89
Set the angles equal because they are vertical angles
150=5m
30=m (divide both sides by 5)