Mary creates a stack of 10 of piece M and a stack of 8 of piece N. Both stacks have equal volumes

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

Can someone tell me if this is perpendicular? !

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.