For part (A) divide the line into fourths so you split it in the middle then in the midle again of each side.
The library is the first 1/4 or line to the right of his house or the line closesest to it (its the same
HOUSE _______LIBRARY________)_________)_______School)
for part (B) all you do is circle the third line which is 75% deep into the line
