Drag each tile to the correct box. Arrange the equations in increasing order of the value of their solutions. ↓ ↓ ↓

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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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.