A window is constructed in the shape of a trapezoid as shown on the side of a building. If all angles that appear to be right angles
are right angles, find the area of the window.

450 square feet

480 square feet

500 square feet

520 square feet

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

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.

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.