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The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

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.

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?