Complete the equation describing how x and y are related.
x y
-2-8
-1 -5
+
0 -2
1 1
2 4 Enter the answer that
3 7
belongs in [?]
y = [?

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.