You have 90$ in your pocket and you spent 30% of your money on a new football. How much was the cost of the football?
2 answers:
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Answer:
Delta does not have a relative extreme in the equation, so it is variable y It can not be true
Step-by-step explanation:
There is an answer
The rest of the equation that has no substituted delta is not true, so the prime variables have relative extremes.
