The sine of place.
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Triangle xyz has vertices x(1,3), y(0,0)

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount