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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.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square