Gavin had 20 minutes to do a three-problem quiz. He spent minutes on Problem 1 and minutes on Problem 2. How much time did he have left for Problem 3? Write the answer in minutes and seconds. How many minutes did he have left?

Answer this two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: two right triangles abc and edc have a common vertex c. angle abc and edc are right angles. ab is labeled 13 feet, ac is labeled 15 feet, ec is labeled 10 feet, and ed is labeled 4 feet.what is the approximate distance, in feet, between the two poles? 11.14 feet16.65 feet14.35 feet15.59 feet