Someone help me on this please

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?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work