Question

jada is getting ready for her schools pep rally next week. she grabbed a roll of ribbon and cut an 18-inch piece from the roll to make a bow for her hair. she used the rest of the ribbon to decorate posters for the pep rally. let r represent the length, in inches, of the roll of ribbon to start. which inequality models the story? r > 18, r ≥ 18, r < 18, r ≤ 18. graph the inequality that models the story. to draw a ray, plot an endpoint and select an arrow. select an endpoint to change it from closed to open. select the middle of the ray to delete it. (number line from 10 to 20 with ticks at 10,11,12,13,14,15,16,17,18,19,20)

Explanation:

Step1: Analyze the ribbon length

Jada cut 18 inches and used the rest. So the original length \( r \) must be at least 18 inches (since she could have used exactly 18 inches or more). So the inequality is \( r \geq 18 \).

Step2: Graph the inequality

For \( r \geq 18 \), the endpoint is at 18 (closed circle, since it's "greater than or equal to"), and the arrow points to the right (towards larger numbers).

Answer:

The inequality is \( r \geq 18 \). For the graph, plot a closed circle at 18 on the number line and draw an arrow to the right.