A prism has a volume of 50 cm3

. Its length is 3 cm and its width is 2 cm. What is its

height?

You don't specify what kind of a prism, but by using the words

length and width, I will interpret that you have a rectangular prism (just a box)

lwh = volume
3(2)(h) = 50
h = 50/6 cm = 25/3 cm