Answer:
A solution of a linear system is an assignment of values to the variables x1, x2, ..., xn such that each of the equations is satisfied. The set of all possible solutions is called the solution set.
Step-by-step explanation:
Answer:
You get 80 degrees
Step-by-step explanation:
50 plus 50 gets you 100. 180-100 80
Step-by-step explanation:
Apply Quotient of Powers:

The 2nd question is the first option
The 3rd question is the third option
.5 is basically 1/2. We know this because .5 written as a fraction is 50/100 which you can simplify to 1/2.
6/10 is greater than 1/2. You can find this out by converting 1/2 to tenths. Multiply the numerator and the denominator by 5 to get 5/10. From there you can easily see that 6/10 > 5/10.
As for the number line simply use 10ths: 1/10, 2/10, 3/10 ... and input 6/10 and 5/10 in the appropriate areas.