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For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?