Answer
a. 14.7 in is the most accurate measurement.
b. 0.017 in is the most precise measurement.
Work Step by Step
a. Since the measurement 14.7 has 3 significant digits (the most) then its the most accurate.
b. Since the precision of the measurement 0.017 in is 0.001 then it is the most precise measurement. The other numbers have precisions of 0.01 and 0.1.