Chapter 3 - Solving Inequalities - 3-3 Solving Inequalities Using Multiplication or Division - Practice and Problem-Solving Exercises - Page 182: 57

$ s \lt -7/5$

In order to cancel out a fraction that is being multiplied by a variable, we multiply by the reciprocal of the fraction. Thus, we multiply both sides of the inequality by -7/5 to obtain that $ s \lt -7/5$. (Note, the direction of the inequality symbol is flipped because we multiply by a negative).