Suppose we choose

and

. Then

Now suppose we choose

such that

where we pick the solution for this system such that

. Then we find

Note that you can always find a solution to the system above that satisfies

as long as

. What this means is that you can always find the value of

as a (constant) function of

.
Answer:
-2a if you're Simplifying it and 2\5 if you're going for a decimal
You can change 24.5% by moving the decimal point
24.5%=.245
70,000 x .245=$17,150
Answer:
Number 728 increased by 30% (30 percent) of its value (percentage increase) and calculated absolute change (actual difference)
Increase the number 728 by 30% of its value
Step-by-step explanation:
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