Answer:
Step-by-step explanation:
The first set of parentheses is unnecessary, so it can just be removed.
To remove the second set of parentheses, you must distribute the negative sign that is to its left. It changes every sign inside the parentheses.
Now you combine like terms.
The answer is 4ft. you just have to convert the size of the wall and the size of the window to the same thing. Like I converted 9.75 to 39/4. Then you just subtract and what you have left is the answer. Hope I explained that well.
0.2 if 1 Mile is 5 Minutes then every 0.1 mile is 30 seconds so 1 minute would be 0.2
1 3/6 + 4/6 = 1 7/6 = 2 1/6
