Answer:
G, 7 cm
Explanation:
the volume of a box is V = lwh
in this problem, we know the volume, length, and width and we are asked to find the height. lets plug in the known values into the formula
378 = (6)(9)h <multiply 6 and 9 together
378 = 54h
now we want to divide both sides by 54 to get h alone, and we will have our answer for the height
378/ 54 = 7
54h/54 = h
h = 7
our height for this box is 7 cm, we can plug this into the original equation to check, but it is not necessary