Kira had 15 pencils. She gave 13 of the pencils to her friend. How many pencils did she give her friend?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 is he correct? explain why or why not?