14. Production function: a graph that shows how a change in the amount of a single variable input changes total production
15. Various مختلف: several; many
16. Short run وقت سريع: a time so fast that only the amount of variable input can be changed
17. Labor عمل: work
18. Long run وقت طويل: a time long enough to change the amounts of all inputs
19. Total product إجمالي المنتج: total (full) production made by a company or business
20. Marginal product: extra production due to more help/work إنتاج إضافي بسبب مساعدة إضافية
21. Firm عمل واحد: a business that sells stuff for profit
22. Stages of production (3): helps a firm decide how many workers to hire and for how long
23. Rate سرعة: speed something is made or done
24. Contribution مساعدة: help
25. Diminishing returns: making less products than before صنع منتجات أقل
