Simplification = 3.5x + 2.5x
Result = 6x
The difference of the expression
is 
<h3>How to determine the difference?</h3>
The expression is given as:

Factor the denominators of the expressions:

Apply the difference of two squares to x² - 9

Take LCM

Hence, the difference of the expression
is 
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The gardener will need to buy 60 feet of fencing. Because the square root of 225 if 15, and 15 times 4 is 60. So, 60 is the perimeter of the garden.
Answer:
B
Step-by-step explanation:
To find the slope, find the vertical distance and the horizontal distance between the points. Then write the distances as a ratio.
6 - 3 = 3
0.4 - 0.2 = 0.2
The slope is 3/0.2 = 15.
Hello,
The equivalent decimal would be:
-0.7
Have a great day.