Assume that the playbook contains 10 passing plays and 12 running plays. The coach randomly selects 9 plays from the playbook. What is the probability that the coach selects at least 3 passing plays and at least 3 running plays?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

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?

With alll of except for the 2 that i did already