PLEASE HELP THIS IS URGENT Scott wants to buy fencing to place around a semicircular rock garden. The diameter of the semicircle is 16 feet. Using 3.14 for , he calculates that he needs to buy about 25.12 feet of fencing. The fencing is sold by the foot, so he plans to buy 26 feet of fencing. Explain why Scott's reasoning is incorrect, and find the correct amount of fencing he should buy​

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Find the difference (8ab+a+2) - (3ab+6)

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.