Adepartment store is having a sale where a pocketbook is on sale for 1/4 off the retail price. then entitled 30% off the sale price. the retail price is 800. what will have to be pay in sales tax if the tax is 9% of the final price of the pocketbook?

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Asource of laser light sends rays ab and ac toward two opposite walls of a hall. the light rays strike the walls at points b and c, as shown below: what is the distance between the walls?

Find the x-intercepts for the parabola defined by this equation: y=-3x^2-6x+9