13z is the answer for your question.
The volume of the ethanol inside the tube can be obtained by dividing the mass of ethanol by the density. The volume is equal to 15.03 ml or 15.03 cm3. The volume of the tube is equal to pi d^2/4 * h where h is 15 cm. From this formula, the diameter is equal to 1.13 cm.
158 this does not need to be twenty charters as it is a multi choice question
2.09
Here you go! Hope it helps!
2 + 13x, because (19x − 6x) + 2 = 13x + 2 = 2 + 13x
