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Consider a router buffer preceding an outbound link. Let N denote the average number of packets in the buffer plus the packet being transmitted. Let a denote the rate of packets arriving at the link. Let d denote the average total delay (i.e., the queuing delay plus the transmission delay) experienced by a packet. Little's formula is N = ad Suppose that on average, the buffer contains 8 packets, and the average packet queuing delay is 10 msec The link's transmission rate is 80 packets/sec. Using Little's formula, what is the average packet arrival rate, assuming there is no packet loss? Show your work