1. The problem is to understand and interpret the inequality $t \geq 60$ on a number line. 2. The inequality $t \geq 60$ means that $t$ is greater than or equal to 60. 3. On a number line, this is represented by a point at 60 with a solid circle (indicating inclusion of 60) and an arrow extending to the right, showing all values greater than 60. 4. The numbers on the number line range from 55 to 65, and the arrow starts at 60 and points right, covering 60, 61, 62, 63, 64, and 65. 5. This matches the inequality $t \geq 60$ perfectly, as it includes 60 and all numbers greater than 60. Final answer: The inequality $t \geq 60$ is correctly represented by the number line with an arrow starting at 60 and extending to the right, including 60 itself.