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2) Two lines K, L meet at point ( 1,1 ). Is K's interception [#permalink]
01 Oct 2003, 14:00
0% (00:00) correct
0% (00:00) wrong based on 0 sessions
2) Two lines K, L meet at point ( 1,1 ). Is K's interception on Y >
A K's slope > L's slope
B L's slope < 0
3)A book store, soft cover's price is $2/copy, hardcover's price is
$5/copy. one day, 50 copies are sold, and the number of hardcover
sold is no less than 20, but no more than 30. How much money S generated from the sales?
1) 40<= S <=80
2) 120 <= S <= 210
3) 180 <= S <= 240.