A cube of aluminum measures 3 cm on each side and weighs 81 g. What is its density? (hint: find the volume of the block first).

3 grams per cubic centimeter.

Explanation:

density = mass ÷ volume.

d = m ÷ v.

m=81 g.

volume = length × width × height.

volume = 3 cm × 3 cm × 3 cm = 27 cubic centimeters.

v = 27 cubic centimeters.

d = 81 ÷ 27

density = 3 grams per cubic centimeter.

the histogram that represents the data with the largest spread is data set b