Determine the solutions to the quadratic function

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

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 abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?