Given f(x)=2x^2-9x+2 and g(x)= 1-6x and h(x)=x^2-4 what does (h of f)(x) Is this just simplified

Which of the following lines is not parallel to the graph of y = 4x +7?

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

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.