Answer:

Step-by-step explanation:

hope this helps you.
Answer:
The answer is "789.03 and 806.16".
Step-by-step explanation:

For point a:
Calculating the value for

For point b:
Calculating the value of 
Negative 6 plus positive 3 equals negative three.
82+2x=180
2x=98
x=49
answer is x=49