What is the measurment for 0.5 centimiters

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

The equation y= -16t^2+120 can be used to represent the fridge height above the ground where ti represents time in seconds after she threw the apple how long does it take the apple to hit the ground running your

Solve the system by substitution. if the system is inconsistent or has dependent equations, say so. 5x-6y=-27 -5x+y=0