exam Maths Puzzle Numerical Ability

find the slope of the line determined by each equation.

3x=4y-2

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exam Other Question

If f(x)=3(1/125)^(x-2)+12 , then what is the value of x when f(x)=87? A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased towards heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it?