Question

(b) the mass of a fossil is at least 11 kilograms. use m for the mass in kilograms. inequality: graph:

Explanation:

Step1: Interpret "at least"

"At least" means greater than or equal to.

Step2: Write the inequality

Since the mass $m$ is at least 11 kilograms, the inequality is $m\geq11$.

Step3: Graph the inequality

On a number - line, we use a closed circle at 11 (because 11 is included in the solution set, due to $\geq$) and draw an arrow to the right to represent all numbers greater than 11.

Answer:

Inequality: $m\geq11$
Graph: Use a closed circle at 11 and draw an arrow to the right on the number - line.