Which number sentence is true? 4.05<0.45,4.05=0.45,0.45<0.5

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.

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

What is the length and width of a 84.5 square foot rug? will mark