Sophia borrowed $12,109 at 4.5% simple interest for 6 months. how much will the interest amount to? what is the total amount that she will have to pay back at the end of 6 months?

What is the reflection image of (5,-3) across the line y = -x?

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 greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5