What's 2106 divided by9 use area model

Two lines parallel to a third line are parallel to each other. always sometimes or never

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.