Hey there! I'm happy to help!
We want to get all of the variables on the left side and all of the numbers on the right side. This will allow our variable to be isolated so we can see what it is equal to.
1/4x - 1/8 = 7/8 + 1/2x
We add 1/8 to both sides.
1/4x=1+1/2x
We subtract 1/2x from both sides.
-1/4x=1
We divide both sides by -1/4 (same thing as multiplying -4).
B. x=-4
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I believe C. Sorry if I’m wrong!
If the shapes are similar, the correspondent sides are in proportion:
Let's plug the values and solve for x:
Multiply both sides by x to get
The only feasible solution, though, is 
, because it wouldn't make sense to have negative lengths.
Answer:
The half-life of the radioactive substance is 135.9 hours.
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32⁴
32 × 32 × 32 × 32
1,024 × 32 × 32
32,768 × 32
1,048,576
The answer is 1,048,576
Brainliest???
