I dont know if m2 is the variable or its suppose to be m(2)
Answer:
x < -1 or x > 9
Step-by-step explanation:

Add 3 to both sides.

Simplify.

Divide both sides by 10.

Simplify.

Apply absolute value rule: If
then
or 
or 

Add 4 to both sides.

Simplify.


Add 4 to both sides.

Simplify.

Combine the intervals.
or 
Acute, Meaning less than 90 degrees.
Cost of 3 laptops
3×546.78
=1,640.34
Cost of 2 desktop computer
2×1,255.99
=2,511.98
Cost of fax machine
125.99
Total cost
(1,640.34+2,511.98+125.99)
=4,278.31
So Kim will need an additional 778.31 to start her business
4,278.31−3,500
=778.31
Step-by-step explanation:
The equation is given by :
63.25=800r+3.50
Here,
63.25 is the electric company charges
3.5 is an administrative fee
800 is charge per kilowatt hours
r is rate per kilowatt hour
In this proble, we need to tell that what does r represents. Hence, r shows kilowatt per hour.
We can solve it as follows :
63.25-3.5=800r+3.50-3.50 (Subtracting 3.50 to the both sides)
59.75=800r
