What is the formula for triangle​

6people equally share 56 gummy worms. how many gummy worms does each person get? nine and one sixth gummy worms nine and two sixths gummy worms ten and one sixth gummy worms ten and two eighths gummy worms

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25