Mable and her design team created the system below:

Mabel and her design team created the system below: (a) The overall reliability of the system =% (enter your response as a percentage rounded to two decimal places). (b) If $3,500 must be spent to fix a failed system, wrt is the expected failure cost of the system? $ (round your response to the nearest dollar). (c) If the team proposes to add a backup component with 85% reliability to R1, how much should they pay for the backup at most? \$ (round your response