The tiles on the left contain functions written using notation. match each function with its input.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval