B. Direction: Using the diagram below, form a ratio in colon form
() (0) O T 1 i 人介介 A AL 6. Rectangle to circle 9. Trapezoid to triangle 7. Triangle to rectangle 10. Arrow-up to rectangle 8. Circle to arrow-up
Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?