Tara age is twice saly age. joan is twice tara age, tara is12 years. how old saly age

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

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Let x = a + bi and y = c + di and z = f + gi. which statements are true?