Find the surface area and volume of these solids. Cylindrical storage tank with hemispherical ends. With Radius of 4 and length of 20 and 8

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

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.

Find the distance between (0,5) & (-4,2)