4x^2y multiplied by (-6xy^2)

How is the number of vertices for a prism related to the name of the prism

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them