The answer is 2/-2
Using the formula y^2-y^1/x^2-x^1
For the first one, x=-1, y=-8
Answer:
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Step-by-step explanation:
$50
20 x 2 = 40, which is 80%
and then 20 divided by 2 is 10; so you add that to 40 and you get your answer
