Please show work 8) 3n+1 +8n2 – 8n – 7

9. given the function: f(x) =3x-7, find f(-2)

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

What value is a discontinuity of x squared plus 8 x plus 4, all over x squared minus x minus 6?