Needing with some of my college summer hw

B. Half the speed of the car. and C. The number of different colors on the page.

Variables are symbols for unknown values, so you have to find the statements that contain an unknown value.

A. 27 ⇒ The point value is known, so there is no variable.

B. X ⇒ Since the speed of the car is unknown, the variable X represents the speed of the car. This variable is multiplied by or divided by 2 to get half the speed of the car.

C. X ⇒ The number of different colors is not known, so the variable X represents the number of different colors.

D. 80 ⇒ There is nothing unknown in the statement.