Which equation doesn't belong? Be prepared to explain your reasonoing. 1/2x = -50
-60t = 30
X + 90 = -100
-0.01 = -0.001x

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.