Question

1. select which sentence represents the expression: $2x - 5$

• half a number minus five
• take away 5 from two times a number
• double a number plus five
• take away two times a number from five

Explanation:

• Analyze each option:
• "Half a number minus five" would be $\frac{1}{2}x - 5$, not $2x - 5$.
• "Take away 5 from two times a number": Two times a number is $2x$, take away 5 from it is $2x - 5$, which matches the expression.
• "Double a number plus five" would be $2x + 5$, not $2x - 5$.
• "Take away two times a number from five" would be $5 - 2x$, not $2x - 5$.

Answer:

Take away 5 from two times a number