Answer: use socratic you take a picture of the problem and it does it.
I think its 5 because 5 times 20 is 100
Answer:
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Step-by-step explanation:
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-4
Step-by-step explanation:
-4z² + z²
let's assume you have z² and you're owing 4z², you'll pay the z² you have and you'll still owe 4
so that is -4