Allie bought a used car in 2011 with 19,800 miles on it. In 2016, she had 500 more than four times the number of miles that were on it when she purchased it. Find the rate of change in miles from 2011 to 2016. 9,980 miles per year

10,175 miles per year

10,760 miles per year

11,980 miles per year

Aking and his army will attempt to capture a fortress. the left and right flanks break off from the main group to attack the west and east guard towers. suppose the left flank has a 60% chance of success and the right flank has a 75% chance of success, independently of one another. if both flanks capture their respective targets, then the king has a 98% chance of successfully taking the fort. if, however, only the left flank captures its tower, the king has an 80% chance of success; if only the right flank succeeds, the king has a 50% chance. if both flanks fail, then the king's chance of capturing the fort drops to 20%. it turns out the king captures the fort. what is the probability that one, and only one, flank was successful (either the left, or the right, but not both)? (round your answer to 3 decimal places)