How much did the infant gain in the first month of life?

What is the improper fraction or mixed number represented by the following figure?

If a building b feet high casts a shadow f feet long, then, at the same time of day, a tree t feet high will cast
a shadow how many feet long?

Art realized that he had 2 more quarters than he had originally thought in his pocket. If all of the change in
his pocket is quarters and it totals to $8.75, how many quarters did he originally think were in his pocket?