20 points for best answer to my test

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

Which graph corresponds to the function f(x) = x2 + 4x – 1?

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?