A rectangular prism has a volume of 5x2 + 45x-180. Its base has a length of x-3 and a width of 5.
Which expression represents the height of the prism?

1) x-3
2) x² + 9x-36
3) X-9
4) x+12

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.

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55