What is the solution of the system of equations below?
2x+3y=7
x+y=4

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 is the ratio of the length of an object in yards to the length of the same object in miles?

Acircle has a circumference of 7.850 units. what is its radius?