Katherine and David each improved their yards by planting roses and tulips, they bought their supplies from the same store. Katherine spent $34 on 2 pots of roses and 2 pots of tulips. David spent $74 on 2 pots of roses and 6 pots of tulips
A Write a system of equations for each person (Katherine should be one equation, and David should be another equation)
B. Which method (substitution, elimination, graphing, etc.) are you going to use to figure out how much each pot of roses and tulips cost? Explain why
C. Find the cost of one pot of rose and one pot of tulips

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)