5a+12b+30c ; a=3, b=2, and c=1 evaluate the expression for the given value of the variable.

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

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.