Plz answer I really need it

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?

Type the next three numbers in a sequence 80, 90, 85, 95, 90, 100, 95, 105

Write the ratio as a fraction in lowest terms 1 1/3 to 1 2/3