Writing and Graphing One-Variable Inequalities

Khalani can work a maximum of $25$ hours and he works $5$ days. Thus, if we divide $25$ with $5$ we'll get the maximum number of hours he can work each day. $$\frac{25}{5}=5$$ Now, let the number of hours he work each day be $h.$ Since he doesn't want to work more than $5$h/day, since this would succeed his $25$ hour/week limit, $h$ should be less than or equal to $5.$ $$h\le 5$$