Question

when solving a two - variable equation, each representing the cost or quantity in a real - world scenario. in two - variable inequalities, the combined result of two quantities is limited by a

Explanation:

1. For the first blank: In real-world two-variable equations, each variable stands for a specific measurable quantity like cost or amount.
2. For the second blank: When combining two-variable inequalities, the valid range of the two quantities is restricted by a system of inequalities.

Answer:

1. variable
2. system of inequalities