Upper bound and lower bound of 3450.5

The chart below shows the distribution of weeds in yard

What is the area of the triangle 10 13 12

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