Farrah has a piece of paper that is 11 inches long and 8 inches wide. She cuts a semicircle with a radius of 4 inches out of the piece of paper. What is the area of the piece of paper she has left after
the cut to the nearest hundredth? Use 3.14 for .
Enter the correct answer in the box.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle