Answer:

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The answer to the question is 42ft.
The correct answer is: [C]: " 1/4 " .
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Explanation:
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(-3/8) + (5/8) = (-3 + 5) / 8 = 2/8 ;
→ 2/8 = (2÷2) / (8÷2) = 1/4 ; → which is: Answer choice: [C]: " 1/4" .
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Since both equations are equal to y you can just make them equal to each other, like this 3x + 7 = x - 9. From there isolate the varible x on one side so that the solution will be on the other side of the equation. I'll do the steps too for you.
3x + 7 = x - 9
2x + 7 = -9
2x = -16
x = -8
Hope this helps :)
1 is expressed in decimal simply as 1.00
23/100 is expressed in decimal by 0.23
1 is a whole number and for it to become a decimal we must convert it into a fraction and perform division. 1 in fraction form is simply 1/1 which equals to 1.
23/100 to become decimal we need to divide 23 by 100. It will give us a quotient of 0.23