Answer: 4.65
Step-by-step explanation: 42.80 - 38.15 = 4.65
Well just think 747 divided by 9
Step-by-step explanation:
First step:
Calculate a slope.
The formula of a slope:

The slope-intercept form of an equation of a line:

m - slope
b - y-intercept
We have the points (5, -4) and (-1, 8). Substitute:

Put the value of the slope and the coordinates of the point (5, -4) to the equation of a line:

<em>add 10 to both sides</em>

Finally:

Answer:
x=\sqrt{30}
Step-by-step explanation:
The answer is A is is the best