Question

1. six is less than or equal to the sum of a number and 15.

Explanation:

Step1: Let the number be $x$.

The sum of the number and 15 is $x + 15$.

Step2: Translate the sentence into an inequality.

The sentence "Six is less than or equal to the sum of a number and 15" can be written as $6\leq x + 15$.

Step3: Solve the inequality for $x$.

Subtract 15 from both sides: $6-15\leq x+15 - 15$, which simplifies to $- 9\leq x$ or $x\geq - 9$.

Answer:

$x\geq - 9$