All you need to do is pull out the common factor of

:
Answer:


Step-by-step explanation:
We are given


Calculation of P+Q:

now, we can combine like terms



Calculation of Q-P:

Firstly, we will distribute negative sign

now, we can combine like terms


W=20.3
solve what's in the parenthesis, move the terms, calculate, then divide both sides.
In order to graph the equation, you need some coordinates,
So, put x = 0,
2y = 6. y = 3. Coordinate = (0, 3)
Now, put y = 0,
-x = 6
x = -6 Coordinate (-6, 0)
In short, Just mark that two points and draw a line, graph is done
Hope this helps!
9.
a) You put the scientific notation in expanded form, 671,000,000. From there just divide it by 60. 11,183,333.333 miles per minute.
b) Take the miles/minute rate and multiply it by 8.3; 92821666.6667 miles per 8.3 minutes.
Hope this helps :)