In which direction (clockwise or counterclockwise) will gear

a) 
b) 
Intermediate Algebra
Calculus: Early Transcendentals
Probability and Statistics for Engineering and the Sciences
Applied Calculus for the Managerial, Life, and Social Sciences: A Brief Approach
Calculus (MindTap Course List)
Single Variable Calculus
Finite Mathematics and Applied Calculus (MindTap Course List)
Mathematical Applications for the Management, Life, and Social Sciences
Essentials of Statistics for The Behavioral Sciences (MindTap Course List)
Mathematical Excursions (MindTap Course List)
Precalculus: Mathematics for Calculus (Standalone Book)
Calculus: An Applied Approach (MindTap Course List)
Understanding Basic Statistics
Single Variable Calculus: Early Transcendentals, Volume I
Calculus: Early Transcendental Functions
Finite Mathematics
Elementary Technical Mathematics
Multivariable Calculus
Essentials Of Statistics
Statistics for The Behavioral Sciences (MindTap Course List)
Calculus of a Single Variable
Trigonometry (MindTap Course List)
Contemporary Mathematics for Business & Consumers
Elements Of Modern Algebra
Single Variable Calculus: Early Transcendentals
Calculus: Early Transcendental Functions (MindTap Course List)
Finite Mathematics for the Managerial, Life, and Social Sciences
Study Guide for Stewart's Single Variable Calculus: Early Transcendentals, 8th
Study Guide for Stewart's Multivariable Calculus, 8th
Research Methods for the Behavioral Sciences (MindTap Course List)
Research Methods for the Behavioral Sciences (MindTap Course List)
College Algebra (MindTap Course List)
Introduction To Statistics And Data Analysis
Statistics for Business & Economics, Revised (MindTap Course List)
STATISTICS F/BUSINESS+ECONOMICSTEXT
Multivariable Calculus
Calculus (MindTap Course List)
Mathematics For Machine Technology
Discrete Mathematics With Applications
Mathematics: A Practical Odyssey
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Essentials Of Statistics For Business & Economics
Modern Business Statistics with Microsoft Office Excel (with XLSTAT Education Edition Printed Access Card) (MindTap Course List)
A First Course in Differential Equations with Modeling Applications (MindTap Course List)
College Algebra
Calculus Volume 2