Mason and nora decided to swim across the river. mason began swimming 7.7 seconds earlier than nora. mason swam at a speed of 5 feet per second. nora swam at a speed of 5+1 feet per second. for how many seconds had mason been swimming at the moment when the two swimmers had swam exactly the same distance?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

What kind of bond pays interest which is exempt from tax?

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