Which shows the correct way to convert 5 ounces to pounds

If np3 /nc2 = 6, find the value of n

One vertex of a polygon is located at (3,-2). after a rotation, the vertex is located at (2, 3). which transformations could have taken place? check all that apply. - ro, 90" ro, 180" ra, 220v ro, -80" | ro, -27ợ"

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to do these things by hand?