David wants to buy a cd that regularly cost $12. the cd is advertised as 1/4 off the regular price. before tax, what is the cost of the cd?

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?