Why couldn’t the chicken find her egg

The late fee for library books is $2.00 plus 15¢ each day for a book that is late. if maria’s fee for a late book was $3.20, write and solve a linear equation to find how many days late the book was.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2