Answer: The slope is 
Step-by-step explanation:
The slope can be calculated with the following formula:

Then, knowing that the line passes through the points (2,1) and (-1,-1), we can substitute the coordinates into the formula.
In this case:

Therefore, the slope of the line that passes through the points (2,1) and (-1,-1) is:

Answer:
The equation is 4x + 5 = 2x + 6
Step-by-step explanation:
The solution is
means x = 
Let us put the coefficient of x in the left hand side = 4 and the coefficient of x in the right hand side = 2
∵ 4x - 2x = 2x
Now we need two numerical terms their difference is 1 like 5 and 6 or 6 and 7 or 7 and 8 or 8 and 9
Let us take 5 and 6
∵ 4x + 5 = 2x + 6
- Subtract 2x from both sides
∴ 2x + 5 = 6
- Subtract 5 from both sides
∴ 2x = 1
- Divide both sides by 2
∴ x = 
∴ The solution is 
The equation is 4x + 5 = 2x + 6
You put the numbers you want to compare in a line with a space in the middle. the put

if the left is bigger and

if the right side is bigger.
301 , 117
=117 : 301
because they are telling to tell ratio of boys to the ratio of total seniors
No because when -4 is substituted in for n the answer is 37 so it is not true