Clara designed the system with her engineering team. (a) The everall system reliability is% eeter your response as a percentage rounded to two decima) places). (b) : they have to pay $3,200 to fix a failed system, what is the expected failure cost of the system? S (round your response to the ceares) dolla:). (c) i Clara wants to add an) 75 %-reliable backsp to R4, how much should they pay for the backup at the axireurn? $round your response to the nearest dollar). R = 0.96 R=0.83 R=0.67 R-0.72