*17. jim must plant and stake a tree. the stakes are 2 ft from the base of the tree. they are connected to wires that attach to the trunk at a height of 5 ft. if there is 6 inches of extra length at both ends of each wire, how long must the wire be, to the nearest tenth of a foot? a 7.8 ft b 6.4 ft c 5.4 ft d 9.2 ft