The demand model for a certain product is given below, where x represents the price of the product, and y represents the number of units in demand. Interpret the slope.

A.
For each dollar the price decreases, demand decreases by 4,500 units.
B.
For each dollar the price increases, demand decreases by 4,500 units.
C.
For each dollar the price increases, demand decreases by 450 units.
D.
For each dollar the price increases, demand increases by 450 units.
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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)