Apair of inline skates, regularly priced at $180, is now on sale at a 30% discount. what is the sale price of the skates?

Based on what i know about mean, this doesn't add up.

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2

What is the the greatest common factor ?