Wich is better to buy 3 pounds for $8.31 or 5 pounds for $12.95 explain.

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

One integer is 8 times another. if the product is 72, then find the integers

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.