What are the missing measures in this figure?

Draw the line of reflection that reflects △abc onto triangle δ a'b'c'

If the discriminant if a quadratic equation is 4 which statement describes the roots?

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.