I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth I am dissolved into air.
What am I?
Lilly has 15 pop can tabs and all together they equal $30. She dropped one and lost 2. She has $26 worth of pop can tabs. Explain.