Question

Decide whether the following is an expression, an equation, or an inequality. Explain your decision. $$\left(y^{2}+4\right)-7$$

Short answer

\((y^{2}+4)-7\) is an expression.

Step-by-step solution

Analyze the Given Mathematical Phrase

Look carefully at \((y^{2}+4)-7\). It contains variables y(squared), constants (4,7), and operations (addition and subtraction). However, no 'equal-to' or 'inequality' signs are present.

Categorize the Phrase

Considering its features, lack of an equal or inequality sign, this means that \((y^{2}+4)-7\) is a mathematical expression.