Given f(x)=px+q and f^3(x)=8x-7
find value of p and q

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Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: