Which expression is equivalent to the given polynomial expression? 13p – 3p(1 – 2m) – m(2m – 5p) m2

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

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?

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).