Can somebody please help me with this true or false algebra 1 question? A relation that pairs each input with exactly one output is a function.

True or False

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet