. If g= 12 and h = 19, what is the value of
3h(h-g)?
A. 13
B. 43
C. 252
D. 399

Standard deviation of 19,29,21,22,23

Can someone me with the property questions for 12 13 and 14 plz

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?