exam Maths Puzzle Numerical Ability

The average amount customers at a certain grocery store spend yearly is $636.55. Assume the variability is normally distributed. If the standard deviation is $89.46, find the proba

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exam Other Question
find the inverse function f(x)=3x^2+12x+6 For the other side of the overpasss, the engineers have drawn the plands shown in the
figure. Find the degree measure of the angle maked z.
The following were given:
z-6
3x
z