Answer:

Step-by-step explanation:
We have that:

Now we can find a+b

Answer: 
Step-by-step explanation:
1. By definition, you have if
, then 
2. Keeping this on mind, you must follow the proccedure shown below:
- You have that:

Where:

- Substitute values into
. Then, you obtain:
Answer:
$0.23 or D
Step-by-step explanation:
Edg :)
= ( x + 2 )°
= (7y)°
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