What is the value of f = 9/5c + 32 when c = 30

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

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?