In a certain chemical, the ratio of zinc to copper 4 is 17 to. A jar of the chemical contains 646 of copper. How many grams of zinc does it contain? It contains
nothing grams of zinc

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Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.